Acoustic devices and transport devices including the same

Abstract

To provide an acoustic device that improves acoustic characteristics and / or sound pressure characteristics, and a transportation device including the same.SOLUTION: An acoustic device 30 includes an acoustic generating module 330 including a vibrating member 331 and vibrating devices 333, 335 configured on the vibrating member, and an enclosure 310 connected to the vibrating member by a coupling member 320 across an internal space 313, with a portion of the vibrating device housed in the vibrating member.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This specification relates to an acoustic device and a transport device including the same.

Background Art

[0002] A vehicle can include an acoustic device that outputs sound by an audio signal output from a multimedia device such as a car audio. For example, an acoustic device applied to a vehicle can include a front speaker and a rear speaker configured in a coil system.

[0003] However, the acoustic device in a vehicle has limitations in outputting multi-channel real sound or stereo sound through the front speaker and the rear speaker. The acoustic device in a vehicle can output stereo sound when increasing the number of speakers, but there are limitations in increasing the number of speakers due to the size of the speaker by the coil system and the spatial constraints in the vehicle.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The inventors of this specification recognized the above problems and conducted various studies and experiments to improve the acoustic characteristics and / or sound pressure characteristics of the acoustic device for a vehicle. The inventors of this specification invented an acoustic device and a transport device including the same that can improve the acoustic characteristics and / or sound pressure characteristics through various studies and experiments.

[0005] The problem to be solved according to the embodiments of this specification is to provide an acoustic device and a transport device including the same that can improve the acoustic characteristics and / or sound pressure characteristics.

[0006] The problem to be solved according to one or more embodiments of this specification is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] Additional features, advantages, and examples of the invention as described herein are partially described in the following description, partially clarified herein, and will be understood by the examples of the concept of the invention provided herein. Other features, advantages, and examples of the concept of the invention are realized, achieved, and may be achieved by the description, claims, as well as the accompanying drawings, which are provided herein or may be derived therefrom.

[0008] One or more embodiments of this specification include an acoustic device comprising a vibrating member and an acoustic generating module including a vibrating device configured on the vibrating member, and an enclosure connected to the vibrating member across an internal space, wherein a portion of the vibrating device may be housed in the vibrating member.

[0009] A transport device according to one or more embodiments of this specification includes an interior material exposed to an interior space and one or more sound generating devices arranged in the interior material and outputting sound to the interior space, the one or more sound generating devices includes an acoustic device, the acoustic device includes a sound generating module including a vibrating member and a vibrating device configured on the vibrating member, and an enclosure connected to the vibrating member across an internal space, a portion of which the vibrating device may be housed in the vibrating member.

[0010] Specific details relating to various forms of this specification other than the means of solving the problems mentioned above are included in the following description and drawings. [Effects of the Invention]

[0011] Acoustic devices and transport devices including them according to one or more embodiments of this specification may have improved acoustic and / or sound pressure characteristics.

[0012] Acoustic devices and transport devices including the same according to one or more embodiments of this specification can have improved acoustic and / or sound pressure characteristics in a frequency range that includes low-frequency sounds.

[0013] Acoustic devices and transport devices including the same according to one or more embodiments of this specification can improve acoustic characteristics and / or sound pressure characteristics in a frequency range including low-frequency sounds by configuring a vibrating member that includes one or more halls.

[0014] In one or more embodiments of this specification, the acoustic device and the transport device including the same may consist of a signal supply member and a vibration generating unit composed of a single component, thereby achieving the effect of uni-materialization.

[0015] The acoustic devices and transport devices including them according to one or more embodiments of this specification may have a protruding part and a connecting part composed of a single component, thereby achieving the effect of uni-materialization.

[0016] Acoustic devices and transport devices including them according to one or more embodiments of this specification can have their acoustic characteristics and / or sound pressure characteristics further improved, their acoustic reproduction bandwidth extended, and their acoustic devices protected by incorporating protective members in the acoustic devices.

[0017] Acoustic devices and transport devices including them according to one or more embodiments of this specification can improve acoustic and / or sound pressure characteristics in a frequency range including low-frequency sounds by configuring a connecting member between the vehicle interior material and the enclosure.

[0018] Acoustic devices and transport devices including the same according to one or more embodiments of this specification can improve acoustic characteristics and / or sound pressure characteristics in the frequency range including low-frequency sounds and improve peaks and / or dips in the high-frequency range, thereby improving sound pressure balance characteristics or sound pressure flatness characteristics by configuring couplings having non-right-angle shapes.

[0019] The acoustic device according to one or more embodiments of the present specification and the transport device including the same can improve the acoustic characteristics and / or sound pressure characteristics in a frequency band including the sound in the low frequency band by setting and configuring the width and / or length of the coupling part, and can improve the peak and / or dip in the high frequency band, so that the balance characteristic of the sound pressure or the flatness characteristic of the sound pressure can be improved.

[0020] The acoustic device according to one or more embodiments of the present specification and the transport device including the same can further improve the acoustic characteristics and / or sound pressure characteristics in the low frequency band by including a connecting member having different thicknesses.

[0021] The contents of the problems to be solved, the means for solving the problems, and the effects mentioned above do not specify the essential features of the claims, and the scope of rights of the claims is not limited by the matters described in the content of the invention.

Brief Description of the Drawings

[0022] The accompanying drawings included to provide additional understanding of the present invention, incorporated in this application, and constituting a part thereof, can illustrate the aspects and embodiments of the present invention and serve to explain the principles of the present invention together with the description.

[0023] [Figure 1] It is a diagram showing a vehicle acoustic device according to an embodiment of the present specification. [Figure 2] It is a diagram showing a vehicle acoustic device according to another embodiment of the present specification. [Figure 3] It is a diagram showing an acoustic device according to an embodiment of the present specification. [Figure 4] It is an exploded perspective view of the acoustic device shown in FIG. 3 according to an embodiment of the present specification. [Figure 5] It is a cross-sectional view showing the vibrating device of the sound generation module shown in FIGS. 3 and 4 according to an embodiment of the present specification. [Figure 6] It is a diagram showing the vibrating part shown in FIG. 5 according to another embodiment of the present specification. [Figure 7]This figure shows the vibrating part shown in Figure 5, which relates to another embodiment of this specification. [Figure 8] This figure shows an acoustic device according to another embodiment of this specification. [Figure 9] This figure shows an acoustic device according to another embodiment of this specification. [Figure 10] This figure shows an acoustic device according to another embodiment of this specification. [Figure 11] This is a cross-sectional view showing the vibration device of the sound generation module shown in Figure 8, according to one embodiment of this specification. [Figure 12] This figure shows an acoustic device according to another embodiment of this specification. [Figure 13] This figure shows an acoustic device according to another embodiment of this specification. [Figure 14] This figure shows an acoustic device according to another embodiment of this specification. [Figure 15] Figure 12 shows an exploded perspective view of an acoustic device relating to another embodiment of this specification. [Figure 16] This figure shows an acoustic device according to another embodiment of this specification. [Figure 17] This figure shows an acoustic device according to another embodiment of this specification. [Figure 18] This figure shows an acoustic device according to another embodiment of this specification. [Figure 19] This figure shows an acoustic device according to another embodiment of this specification. [Figure 20] This figure shows an acoustic device according to another embodiment of this specification. [Figure 21] This figure shows a method for connecting the acoustic device and the coupling shown in Figure 20, according to another embodiment of this specification. [Figure 22] This figure shows an acoustic device according to another embodiment of this specification. [Figure 23] This figure shows a method for connecting the acoustic device and the coupling shown in Figure 22, according to another embodiment of this specification. [Figure 24] This figure shows an acoustic device according to another embodiment of this specification. [Figure 25]Figure 24 shows an exploded perspective view of an acoustic device relating to another embodiment of this specification. [Figure 26] This figure shows an acoustic device according to another embodiment of this specification. [Figure 27] This figure shows an acoustic device according to another embodiment of this specification. [Figure 28] This is an internal diagram of an acoustic device according to another embodiment of this specification. [Figure 29] This figure shows an acoustic device according to another embodiment of this specification. [Figure 30] This figure shows an acoustic device according to another embodiment of this specification. [Figure 31] This figure shows an acoustic device according to another embodiment of this specification. [Figure 32] This figure shows an acoustic device according to another embodiment of this specification. [Figure 33] This figure shows an acoustic device according to another embodiment of this specification. [Figure 34] This figure shows a joint according to another embodiment of this specification. [Figure 35] This figure shows an acoustic device according to another embodiment of this specification. [Figure 36] This figure shows a method for connecting the acoustic device and the coupling shown in Figure 35, which relates to another embodiment of this specification. [Figure 37] This figure shows an acoustic device according to another embodiment of this specification. [Figure 38] This figure shows a method for connecting the acoustic device and the coupling shown in Figure 37, according to another embodiment of this specification. [Figure 39] This figure shows a vibration device according to one embodiment of this specification. [Figure 40] This figure shows a vibrating device according to another embodiment of this specification. [Figure 41] This figure shows a transport device according to one embodiment of this specification. [Figure 42] This figure shows a transport device according to one embodiment of this specification. [Figure 43] Figures 41 and 42 show sound generating devices located on the roof of the transport equipment. [Figure 44] Figures 41 and 42 show sound generating devices positioned on the roof and seats of the transport vehicle. [Figure 45] This figure shows the acoustic output characteristics of the apparatus according to the examples and experimental cases described herein.

[0024] Unless otherwise specified throughout the drawings and detailed descriptions, identical drawing reference numerals should be understood to refer to the same components, features, and structures. The size, length, thickness, and description of layers, areas, and elements may be exaggerated for clarity, explanation, and convenience. [Modes for carrying out the invention]

[0025] Examples of the embodiments described herein are given in detail, and such examples can be illustrated in the accompanying drawings. Where a specific description of a well-known function or configuration would unnecessarily obscure the gist of this specification, such description may be omitted for the sake of brevity. The described progression of steps and / or operations is illustrative, but the order of steps and / or operations is not limited to that described herein and may be changed except for steps and / or operations that do not necessarily occur in a particular order.

[0026] Unless otherwise specified, the same reference numeral can refer to components that are generally similar, even if they are illustrated in different drawings. In one or more embodiments, identical components (or components with the same name) in different drawings may have the same or substantially the same function and characteristics unless otherwise specified. The names of the components used in the following description are chosen for convenience and may differ from those of the actual product.

[0027] The advantages and features of this specification, and how they are achieved, will become clearer with reference to one embodiment described in detail below, along with the accompanying figures. However, this specification is not limited to the embodiments disclosed below, and can be realized in a variety of different forms. This embodiment is provided merely to complete the disclosure of this specification and to fully inform those who are ordinary skill in the art to which this specification belongs of the scope of the invention.

[0028] For illustrative purposes of the embodiments described herein, the shapes, sizes, areas, ratios, angles, numbers, etc., shown in the figures are illustrative and not limited to those shown in the figures herein. Reference numerals for components in each drawing refer to similar components, even if the same components are shown in other drawings, unless otherwise specified.

[0029] Wherever the terms “including,” “having,” “consisting of,” “forming,” etc., are used herein, other parts may be added unless “only” or “solely” is used. The terms used herein are used solely to describe specific embodiments and are not intended to limit the scope of this specification. The terms used herein are used solely to describe exemplary embodiments and are not intended to limit the scope of this specification.

[0030] Terms expressing components in the singular include plural forms unless otherwise explicitly stated. “Examples” may be illustrative examples. Any implementation described in the “Examples” or “Examples” described herein is not necessarily construed as preferable or advantageous to other implementations.

[0031] In one or more embodiments, components, features, or corresponding information (e.g., levels, ranges, dimensions, sizes, etc.) may be interpreted as including errors or tolerances, even if no explicit description of these errors or tolerances is provided. Errors or tolerances may arise from a variety of factors (e.g., process factors, internal or external impacts, noise, etc.).

[0032] If the positional relationship between two parts is described using words such as "on" or "above" or "over," "on top," "under" or "below" or "beneath," "near," "adjacent to," "beside," or "next to," then one or more other parts may be placed between the two parts unless "just," "immediately," "closely," or "directly" is used. For example, if a structure is described as being located "on or above or over," "at the top," "under or below," "below or beneath," "near," "adjacent to," "beside," or "next to," this description must be interpreted to include cases where the structures are in contact with each other or where a third structure is positioned between them. Furthermore, terms such as "front," "back," "spine," "left," "right," "top," "bottom," "downward," "upward," "upper part," "lower part," "column," "row," "vertical," and "horizontal" refer to any reference frame.

[0033] When describing a temporal relationship, for example, when a temporal sequence is described using "after," "subsequent," "next," or "before, preceding, or prior to," it can include both continuous and non-continuous cases, unless "just," "immediately," or "directly" is used.

[0034] While terms such as "first," "second," etc., are used to describe a variety of components, these components are not limited by these terms. These terms are simply used to distinguish one component from another. Therefore, the first component mentioned below may also be the second component within the technical concept of the present invention. Furthermore, the first element, second element, etc., may be arbitrarily named at the convenience of those skilled in the art without departing from the scope of this specification. While terms such as "first," "second," etc., may be used to distinguish components from one another, the function or structure of a component is not limited by the preceding ordinal number or the name of the component.

[0035] In describing the components of this specification, terms such as 1st, 2nd, A, B, (a), (b), etc., may be used. Such terms are used to distinguish a component from other components and are not used to define its essence, basis, order, or number.

[0036] Where it is stated that a component or layer "connects," "joins," or "links" to another component, it should be understood that the component may directly connect to or be able to connect to the other component, but other components or layers may also be "disposed" or "interposed" between each component that is indirectly connected or can be connected unless otherwise explicitly stated.

[0037] Where a component or layer is described as "in contact" or "superimposed" on another component or layer, it should be understood that the component may be in direct contact with or superimposed on the other component or layer, but that one or more other components or layers may also be "disposed" or "interposed" between each component or layer that may be indirectly in contact with or superimposed on, unless otherwise explicitly stated. For example, in this specification, terms such as "overlap" and "overlapping" should be understood as, for example, "overlapping, electrically and / or physically connected" by the connection of surfaces, or for example, "overlapping, electrically and / or physically connected" by the connection of surfaces.

[0038] The term "at least one" should be understood to include all possible combinations of one or more related items. For example, "at least one of item 1, item 2, and item 3" could mean any combination of item 1, item 2, and item 3, not just combinations of items 1 or 2 or more of item 1, item 2, or item 3.

[0039] The expressions "first component," "second component" and "and / or" "third component" should be understood as one of the first, second, and third components, or any combination or all of the first, second, and third components. For example, A, B and / or C can be considered as A only, B only, C only, any or any combination of A, B, and C, or all of A, B, and C. Furthermore, the expression "component A / component B" should be understood as component A and / or component B.

[0040] In one or more embodiments, the terms “between” and “inside” may be used interchangeably for convenience unless otherwise specified. For example, the expression “between multiple components” may also be understood as “inside multiple components.” In other embodiments, the expression “inside multiple components” may also be understood as “between multiple components.” In one or more embodiments, the number of components may be two. In one or more embodiments, the number of components may be more than two.

[0041] In one or more embodiments, the expression "different from each other" can be understood as any one component being different from the others.

[0042] In one or more embodiments, the expressions “one or more of” and “one or more of” may be used interchangeably for convenience unless otherwise specified. For example, the expression “one or more of” may also be understood as “one or more of.” For example, the expression “one or more of” may also be understood as “one or more of.”

[0043] The features of some of the embodiments described herein can be combined or combined in part or in whole, enabling a variety of technically diverse interlocking and driving processes, and each example can be implemented independently of the others or together in relation to them. In one or more embodiments, the components of each apparatus relating to the various embodiments described herein can be operably combined or configured.

[0044] The "X-axis direction," "Y-axis direction," and "Z-axis direction" should not be interpreted as merely geometric relationships of mutual perpendicularity, but can have a broader range of directions within the scope in which the elements of this specification can function.

[0045] Terms used herein (including technical and scientific terms) may have the same meaning as those understood by a person of ordinary skill in the art to which this specification belongs. Furthermore, terms such as those defined in commonly used dictionaries should be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or overly formal sense unless otherwise specified.

[0046] The embodiments of this specification will be described in detail below with reference to the attached figures. Furthermore, for the sake of convenience of explanation, the scales, dimensions, sizes, and thicknesses of the components shown in the figures are not limited to those shown in the figures, as they may have different scales, dimensions, sizes, and thicknesses than those in reality.

[0047] Figure 1 shows an acoustic device according to one embodiment of this specification. Figure 1 shows an acoustic device for a vehicle according to one embodiment of this specification. All components of the acoustic devices according to all embodiments of this specification can be operably coupled and configured.

[0048] Referring to Figure 1, an acoustic device 30 according to one embodiment of this specification may be positioned inside or mounted inside a vehicle so as to output sound (S) toward the interior space (IS) of the vehicle 10 (or transport device).

[0049] Vehicle 10 may be a transport device including one or more seats and one or more glass windows. For example, vehicle 10 may include, but is not limited to, automobiles, trains, ships, or aircraft.

[0050] A vehicle 10 according to one embodiment of this specification may include a main structure 110.

[0051] The main structure 110 of the vehicle 10 may include, but is not limited to, a main frame, subframe, side frames, door frames, underframe, and seat frames. For example, the main structure 110 may be a vehicle body, vehicle structure, or frame structure, but is not limited to, a main structure 110 of the vehicle 10.

[0052] Vehicle 10 according to one embodiment of this specification may further include exterior material 120.

[0053] The exterior material 120 of the vehicle 10 may be configured to cover the main structure 110. For example, the exterior material 120 may be configured to cover the outside of the main structure 110. In the following description, the exterior material 120 may be vehicle exterior material 120, and these may be used in combination.

[0054] The exterior materials 120 of the vehicle 10 may include, but are not limited to, a hood panel, front fender panel, dash panel, pillar panel, trunk panel, roof panel (or ceiling), floor panel, door inner panel, and door outer panel.

[0055] An exterior material 120 according to one embodiment of this specification may include at least one of a flat portion and a curved portion (or bent portion). For example, the exterior material 120 may have a structure that corresponds to the structure of the main structure 110 in question, or a structure that is different from the structure of the main structure 110 in question.

[0056] The vehicle 10 according to the embodiments of this specification may further include vehicle interior material 130. In the following description, vehicle interior material 130 may be interior material 130, and can be used in combination.

[0057] The vehicle interior material 130 may include all the components that make up the interior of the vehicle 10, or all the components that are located in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be an interior material or an interior finish material of the vehicle 10, but the embodiments herein are not limited thereto.

[0058] One embodiment of the vehicle interior material 130 according to this specification may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be configured to be exposed to the interior space (IS) of the vehicle 10 while covering one or more of the main structure 110 and the exterior material 120 in the interior space (IS) of the vehicle 10.

[0059] The vehicle interior material 130 according to the embodiments of this specification may be configured to be exposed to the interior and / or interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 may be configured to cover at least one surface (or interior surface) of the main frame (or vehicle body), side frame (or side body), door frame (or door body), handle frame (or steering hub), and seat frame that are exposed to the interior space (IS) of the vehicle 10.

[0060] The vehicle interior material 130 according to one embodiment of this specification may include, but is not limited to, a dashboard, pillar interior material (or pillar trim), floor interior material (or floor carpet), roof interior material (or headliner), door interior material (or door trim), steering wheel interior material (or steering wheel cover), seat interior material, rear package interior material (or rear seat shelf), overhead console (or interior lighting interior material), rearview mirror, glove box, and sun visor.

[0061] An embodiment of the vehicle interior material 130 described herein may include one or more materials from among metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, leather, and carbon, and the embodiments described herein are not limited thereto. A plastic vehicle interior material 130 may be an injection-molded product produced by an injection molding process using a thermoplastic or thermosetting resin, but the embodiments described herein are not limited thereto. A fiber vehicle interior material 130 may include at least one of plastic composite fibers, carbon fibers (or aramid fibers), and natural fibers, and the embodiments described herein are not limited thereto. A fiber vehicle interior material 130 may include woven sheets, knitted sheets, or nonwoven fabrics, and the embodiments described herein are not limited thereto. For example, paper may be cone paper for speakers. For example, cone paper may be pulp or foamed plastic, but the embodiments described herein are not limited thereto. A leather vehicle interior material 130 may include natural leather or artificial leather, and the embodiments described herein are not limited thereto.

[0062] A vehicle interior material 130 according to one embodiment of this specification may include at least one of a flat portion and a curved portion (or bent portion). For example, the vehicle interior material 130 may have a structure that corresponds to the structure (or internal surface structure) of the main structure 110 in question, or a structure that is different from the structure of the main structure 110 in question.

[0063] According to one embodiment of this specification, the acoustic device 30 may be placed in the vehicle interior material 130. The acoustic device 30 can vibrate the vehicle interior material 130 to generate sound (S) through the vibration of the vehicle interior material 130. For example, the acoustic device 30 can directly vibrate the vehicle interior material 130 to generate sound (S) through the vibration of the vehicle interior material 130. For example, the acoustic device 30 may be configured to vibrate the vehicle interior material 130 to output sound (S) into the interior and / or cabin space (IS) of the vehicle 10. This allows the vehicle interior material 130 to be used as an acoustic diaphragm. The vehicle interior material 130 may be a diaphragm for outputting sound (S), an acoustic diaphragm, or an acoustic generating plate. For example, the vehicle interior material 130 may be larger than the acoustic device 30, and the embodiments of this specification are not limited thereto.

[0064] According to one embodiment of this specification, the sound device 30 may be positioned in at least one of the following: the dashboard, pillar trim, floor trim, roof trim, door trim, steering wheel trim, and seat trim, or it may be positioned in or connected to at least one of the following: rear package trim, overhead console, rearview mirror, glove box, and sun visor.

[0065] A vehicle 10 or sound device 30 according to one embodiment of this specification may include one or more sound devices. The sound device 30 can vibrate the vehicle interior material 130 via at least one of the one or more sound devices 30 located in the vehicle interior material 130 to output realistic sound (S) and / or stereo sound, including multi-channel sound, into the interior space (IS) of the vehicle 10.

[0066] According to one embodiment of this specification, the acoustic device 30 may be configured in the area between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120. The acoustic device 30 is positioned in the area between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120, and can output sound by indirectly or directly vibrating one or more of the areas between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120.

[0067] According to one embodiment of this specification, the acoustic device 30 may be placed in one or more of the following areas: the area between the main structure 110 and the exterior material 120, the area between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130. For example, the acoustic device 30 may be placed in one or more of the following areas: the area between the main structure 110 and the exterior material 120, the area between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and configured to output sound. For example, the acoustic device 30 may be placed in one or more of the following areas: the area between the main structure 110 and the exterior material 120, the area between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130, and can output sound by indirectly or directly vibrating one or more of the following areas: the area between the main structure 110 and the exterior material 120, the area between the main structure 110 and the vehicle interior material 130, the exterior material 120, and the vehicle interior material 130. For example, the acoustic device 30 is positioned between the exterior material 120 and the vehicle interior material 130, and can output sound by indirectly or directly vibrating one or more of the exterior material 120 and the vehicle interior material 130. For example, the acoustic device 30 may be positioned in at least one of the following locations: the exterior material 120, the vehicle interior material 130, and the space between the exterior material 120 and the vehicle interior material 130. According to one embodiment of this specification, the acoustic device 30 can output sound in at least one of the following locations: the exterior material 120, the vehicle interior material 130, and the space between the exterior material 120 and the vehicle interior material 130.

[0068] An acoustic device 30 according to one embodiment of this specification can output sound between the exterior material 120 and the interior material 130 of a vehicle 10. For example, the acoustic device 30 is connected to or coupled to one or more of the exterior material 120 and the interior material 130, and can output sound by indirectly or directly vibrating one or more of the exterior material 120 and the interior material 130.

[0069] One or more of the exterior material 120 and interior material 130 of the vehicle 10 may be a diaphragm, acoustic diaphragm, or sound generating plate for sound output. For example, since each of the exterior material 120 and interior material 130 for sound output is larger in size than the sound device 30, it can perform the function of a large-area diaphragm, acoustic diaphragm, or sound generating plate, thereby improving the acoustic characteristics and / or sound pressure characteristics of the frequency range including the low-frequency range generated by the sound device 30. For example, the frequency of the low-frequency sound may be 300 Hz or less, 400 Hz or less, or 500 Hz or less, but the embodiments herein are not limited thereto.

[0070] Figure 2 shows a vehicle acoustic device according to another embodiment of this specification. Figure 2 shows the acoustic device with the vehicle interior materials changed from those in Figure 1. Accordingly, in the following description, redundant explanations of the remaining components excluding the vehicle interior materials will be omitted or simplified.

[0071] Referring to Figure 2, another embodiment of the acoustic device 30 according to this specification can vibrate a vehicle interior material 130, which includes one or more materials from metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, to produce sound (S).

[0072] Other embodiments of the vehicle interior material 130 according to this specification may include a base member 131 and a surface member 133. For example, the base member 131 may be an injection molded part, a first interior material, an interior interior material, or a rear interior material, but the embodiments of this specification are not limited thereto. The surface member 133 may be a second interior material, an exterior interior material, a front interior material, an outer skin member, a reinforcing member, or a decorative member, but the embodiments of this specification are not limited thereto.

[0073] The base member 131 may be made of a plastic material. The base member 131 according to one embodiment of this specification may include an injection molded product. For example, the base member 131 may be an injection molded product realized by an injection molding process using a thermoplastic or thermosetting resin, but the embodiments of this specification are not limited thereto. The vehicle interior material 130 or base member 131 may be configured to cover the interior of the vehicle 10. For example, the vehicle interior material 130 or base member 131 may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 or base member 131 may be configured to cover at least one or more of the main frame, side frame, door frame, and handle frame exposed in the interior space (IS) of the vehicle 10 (or interior surface).

[0074] The base member 131 may include at least one of a flat portion and a curved portion. For example, the base member 131 may have a structure that corresponds to the structure (or back structure) of the main structure 110, or a structure that is different from the structure of the main structure 110.

[0075] The surface member 133 may be positioned on the base member 131. For example, the surface member 133 may be configured to cover the base member 131. For example, the surface member 133 may be configured to cover the base member 131 while being exposed to the interior and / or interior space (IS) of the vehicle 10. For example, the surface member 133 may be positioned on or coupled to the front (or interior) surface of the base member 131 that is exposed to the interior space (IS) of the vehicle 10.

[0076] An embodiment of the vehicle interior material 130 or surface member 133 according to this specification may include one or more materials from among plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, carbon, and metal, and the embodiments herein are not limited thereto. The surface member 133 may be made of fiber. For example, a surface member 133 made of fiber may include at least one of synthetic fibers, carbon fibers (or aramid fibers), and natural fibers, and the embodiments herein are not limited thereto. For example, a surface member 133 made of fiber may be a woven sheet, a knitted sheet, or a nonwoven fabric, and the embodiments herein are not limited thereto. For example, a surface member 133 made of fiber may be a fabric member, and the embodiments herein are not limited thereto.

[0077] Synthetic fibers, as thermoplastic resins, may include polyolefin fibers, which are environmentally friendly materials that do not release relatively harmful substances. For example, polyolefin fibers may include polyethylene fibers, polypropylene fibers, or polyethylene terephthalate fibers, and the examples herein are not limited thereto. Polyolefin fibers may be single-resin fibers or core-shell structure fibers, and the examples herein are not limited thereto. Natural fibers may be one or more blends of jute fibers, kenaf fibers, abaca fibers, coconut fibers, and wood fibers, and the examples herein are not limited thereto.

[0078] The acoustic device 30 can be covered by the vehicle interior material 130. For example, the acoustic device 30 may be configured to vibrate the vehicle interior material 130, which includes a base member 131 and a surface member 133, to output sound (S) into the interior and / or cabin space (IS) of the vehicle 10.

[0079] Another embodiment of the acoustic device 30 described herein uses the vehicle interior material 130 as a diaphragm to output sound (S) into the interior space (IS), and can output multi-channel realistic sound (S) and / or stereophonic sound into the interior space (IS) of the vehicle 10.

[0080] In other embodiments of this specification, the acoustic device 30 may be configured to be surrounded by an enclosure. A space is provided between the acoustic device 30 and the enclosure, and sound (or sound pressure) can be output in conjunction with the vibration of the vehicle interior material 130 due to the air between the acoustic device 30 and the enclosure. However, there is a problem that low-frequency sound is not output, and the number of peaks and dips generated in the playback frequency band of the sound (or sound pressure) generated in conjunction with the vibration of the vehicle interior material 130 increases, and the maximum and minimum sound pressures generated in the playback frequency band of the sound (or sound pressure) generated in conjunction with the vibration of the vehicle interior material 130 increase, resulting in a decrease in sound pressure flatness. A peak is a phenomenon in which sound pressure jumps at a specific frequency, and a dip may be a phenomenon in which the generation of sound at a specific frequency is suppressed and a low sound pressure is generated. Sound pressure flatness may be the difference between the maximum sound pressure and the minimum sound pressure.

[0081] The inventors of this specification have conducted various studies and experiments to realize an acoustic device and a transport device including the same, in which the acoustic characteristics in the low-frequency range can be improved and the flatness of sound pressure can be enhanced. Through various studies and experiments, they have invented an acoustic device and a transport device including the same, in which sound can be output including the high-frequency range to the low-frequency range, and in which the balance characteristics or flatness characteristics of sound pressure can be improved. This is described below.

[0082] Figure 3 is a diagram showing an acoustic device according to one embodiment of this specification. Figure 4 is an exploded perspective view of Figure 3 according to one embodiment of this specification.

[0083] Referring to Figures 3 and 4, an acoustic device 30 according to one embodiment of this specification may include an enclosure 310 and an acoustic generating module 330. The acoustic device 30 may be configured to vibrate an object or vehicle structure. For example, the acoustic device 30 may be an acoustic generating device, an acoustic output device, a speaker device, a car audio system, or an audio system, but the embodiments of this specification are not limited thereto.

[0084] The acoustic device 30 may be configured to be connected to (or coupled to) a vehicle structure. For example, the acoustic device 30 may be configured to generate (or output) sound by vibrating a portion of any one of the main structure 110, exterior material 120, and vehicle interior material 130 shown in Figure 1 or Figure 2.

[0085] The sound generation module 330 can vibrate the vehicle interior material 130. This allows the sound generation module 330 to generate sound through the vibration of the vehicle interior material 130. For example, the sound generation module 330 may be configured to indirectly vibrate the vehicle interior material 130. The sound generation module 330 can generate or output sound or vibration by driving (or vibrating or displacing) the vehicle interior material 130. For example, the sound generation module 330 may be configured to vibrate the vehicle interior material 130 by vibrating the enclosure 310. For example, the sound generation module 330 may be a sound generation unit, a sound generation member, a sound reproduction module, a sound reproduction unit, a car audio module, a car audio unit, a speaker module, or a speaker unit, but the embodiments herein are not limited thereto.

[0086] An acoustic generation module 330 according to one embodiment of this specification may include a vibrating member 331 and vibrating devices 333, 335.

[0087] The vibrating member 331 can generate vibrations or output sound (or sound waves) by the displacement (or drive) of the vibrating devices 333 and 335. For example, the vibrating member 331 may be a plate, a vibrating plate, a vibrating substrate, an object to be vibrated, a vibrating panel, a sound plate, a sound panel, a passive vibrating plate, a passive vibrating member, a passive vibrating panel, an acoustic output plate, or an acoustic vibrating plate, but the embodiments herein are not limited thereto.

[0088] The vibrating member 331 may include a single nonmetallic or composite nonmetallic material. For example, the single nonmetallic or composite nonmetallic material of the vibrating member 331 may include one or more of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, but the embodiments herein are not limited thereto. For example, paper may be cone paper for a speaker. For example, cone paper may be pulp or foamed plastic, but the embodiments herein are not limited thereto.

[0089] The vibrating member 331 according to one embodiment of this specification may be made of a plastic material or a styrene plastic material, but the embodiments of this specification are not limited thereto.

[0090] The plastic material of the vibrating member 331 may consist of polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, cycloolefin copolymer, or carbon fiber reinforced plastic (CFRP), but the examples herein are not limited to these.

[0091] The styrene material of the vibrating member 331 may be an ABS material. The ABS material may be acrylonitrile, butadiene, or styrene.

[0092] A vibrating member 331 according to one embodiment of this specification may be made of a porous material. For example, the vibrating member 331 may be made of microcellular plastics. For example, the vibrating member 331 may be made of polyethylene terephthalate or polycarbonate. For example, the vibrating member 331 may be made of microcellular polyethylene terephthalate (MCPET). A vibrating member 331 made of microcellular polyethylene terephthalate has low density, excellent elasticity, and high original sound reproduction capability, and can therefore improve the sound quality of the acoustics.

[0093] According to one embodiment of this specification, the vibrating member 331 may have a rectangular shape, but the embodiments of this specification are not limited thereto. For example, the vibrating member 331 may have a rectangular shape with long sides and short sides. For example, the vibrating member 331 may have a first surface 331s1 and a second surface 331s2 that is different from (or opposite to) the first surface 331s1. For example, in the vibrating member 331, the first surface 331s1 may be the back, rear, or bottom surface, and the second surface 331s2 may be the front or top surface.

[0094] The vibration devices 333 and 335 may be configured to vibrate the vibrating member 331. For example, the vibration devices 333 and 335 may be positioned on or configured on the vibrating member 331. The vibration devices 333 and 335 may be configured to vibrate (or displace or drive) the vibrating member 331 by vibrating (or displacing or driving) in response to an applied drive signal (or vibration drive signal or voice signal).

[0095] The vibration devices 333 and 335 may correspond to or have the same shape as the vibration member 331, but the embodiments herein are not limited thereto. For example, the vibration devices 333 and 335 may have a different shape from the vibration member 331. For example, the vibration devices 333 and 335 may have a rectangular or square shape. For example, the vibration devices 333 and 335 may have a rectangular or square shape that is smaller than the vibration member 331.

[0096] The vibration devices 333 and 335 according to one embodiment of this specification can be integrated with the vibrating member 331. For example, the vibration devices 333 and 335 can be directly coupled (or bonded) to the vibrating member 331. For example, the vibration devices 333 and 335 can be directly coupled (or bonded) to the vibrating member 331 without a separate adhesive member or intermediate member (or mediator). For example, the vibration devices 333 and 335 and the vibrating member 331 can be coupled to each other or configured as a single body that is physically coupled without a separate adhesive member or intermediate member (or mediator). For example, the vibrating member 331 may be a vibrating plate integrated with the vibration device, but the embodiments of this specification are not limited thereto. This allows the vibration of the vibration devices 333 and 335 to be transmitted to the vibrating member 331 without loss when the vibration devices 333 and 335 are vibrating (or displaced or driven), thereby improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 331. Furthermore, since separate adhesive members or intermediate members for connecting (or bonding) the vibration devices 333, 335 and the vibration member 331 to each other are omitted, the manufacturing process of the acoustic device can be simplified, and the manufacturing cost of the acoustic device can be reduced.

[0097] Other vibrators 333 and 335 according to this specification may be coupled (or attached) to the vibrator 331 by an adhesive member. For example, when vibrators 333 and 335 are coupled (or attached) to the vibrator 331 via an adhesive member, the sound pressure characteristics of the sound generated by the vibration of the vibrator 331 may be reduced due to vibration transmission loss by the adhesive member and vibration transmission loss due to air bubbles generated between the adhesive member and the vibrator 331.

[0098] According to one embodiment of this specification, a portion of the sound generating module 330 or a portion of the vibration devices 333, 335 may be configured to be housed in a vibrating member 331. A portion of the sound generating module 330 or a portion of the vibration devices 333, 335 may be directly (or inserted) into a portion of the vibrating member 331 without the need for a separate adhesive member or a separate intermediate member (or mediator). This allows a portion of the sound generating module 330 or a portion of the vibration devices 333, 335 to be integrated with the vibrating member 331 without the need for a separate adhesive member or a separate intermediate member (or mediator).

[0099] According to one embodiment of this specification, the vibrating member 331 may be configured to accommodate (or insert) a portion of the sound generating module 330 or a portion of the vibration devices 333, 335. For example, the vibrating member 331 may include one or more home portions 331a, 331b. For example, a portion of the sound generating module 330 or a portion of the vibration devices 333, 335 may be accommodated (or inserted) into one or more home portions 331a, 331b of the vibrating member 331. For example, a portion of the sound generating module 330 or a portion of the vibration devices 333, 335 may be accommodated (or inserted) into one or more home portions 331a, 331b of the vibrating member 331 without the need for a separate adhesive member or a separate intermediate member (or mediator). This allows a portion of the sound generating module 330 or a portion of the vibration devices 333, 335 to be integrated with one or more home portions 331a, 331b of the vibrating member 331 without the need for a separate adhesive member or a separate intermediate member (or mediator).

[0100] According to one embodiment of this specification, if the vibrating member 331 is made of plastic material, the vibrating member 331 may be bonded (or welded) to a part of the sound generating module 330 or a part of the vibration devices 333, 335 in a semi-cured state, and then cured to become integrated with or joined to a part of the sound generating module 330 or a part of the vibration devices 333, 335, but the embodiments of this specification are not limited thereto. For example, a part of the vibrating member 331 made of plastic material may be melted by heat and welded or joined to a part of the sound generating module 330 or a part of the vibration devices 333, 335, thereby allowing the part of the sound generating module 330 or a part of the vibration devices 333, 335 and the part of the vibrating member 331 to be integrated with or joined to each other without a separate adhesive member or a separate intermediate member (or mediator). For example, a portion of the vibrating member 331 that houses (or has been inserted) a part of the sound generating module 330 or a part of the vibration devices 333, 335 can constitute one or more home portions 331a, 331b of the vibrating member 331.

[0101] An acoustic generation module 330 or vibration devices 333, 335 according to one embodiment of this specification may include one or more vibration devices. For example, multiple vibration devices 333, 335 may be arranged with a vibrating member 331 in between. For example, the acoustic generation module 330 may include one or more of the first vibration device 333 and the second vibration device 335. The first vibration device 333 and the second vibration device 335 may be configured as the vibrating member 331.

[0102] Each of the first vibrator 333 and the second vibrator 335 of the vibrator can have the same shape as the vibrating member 331 or a different shape. According to one embodiment of this specification, each of the first vibrator 333 and the second vibrator 335 can have a rectangular shape that is smaller than the vibrating member 331.

[0103] According to one embodiment of this specification, the long sides of the first vibrator 333 and the second vibrator 335 can be spaced parallel to the long side of the vibrating member 331 so as to have a first distance (or first shortest distance) from the long side of the vibrating member 331. The short sides of the first vibrator 333 and the second vibrator 335 can be spaced parallel to the short side of the vibrating member 331 so as to have a second distance (or second shortest distance) from the short side of the vibrating member 331. For example, the first distance may be different from the second distance. For example, the first distance may be smaller than the second distance.

[0104] The first vibrator 333 and the second vibrator 335 may be arranged with the vibrating member 331 in between. The first vibrator 333 and the second vibrator 335 may be configured to vibrate (or displace or drive) the vibrating member 331 in response to an applied drive signal (or vibration drive signal or voice signal). For example, the drive signals (or vibration drive signal or voice signal) applied to the first vibrator 333 and the second vibrator 335 may be the same or different from each other. For example, the drive signals applied to the first vibrator 333 and the second vibrator 335 may have the same or different phases from each other. For example, the first vibrator 333 and the second vibrator 335 may be in a bimorph structure arranged with the vibrating member 331 in between. Since the first vibrator 333 and the second vibrator 335 can vibrate the vibrating member 331 independently, the influence of the material and properties of the vibrating member 331 on the acoustic properties may be reduced. This can improve the acoustic characteristics and / or sound pressure characteristics of the sound device 30.

[0105] The first vibrator 333 may be positioned on the first surface 331s1 of the vibrating member 331. The second vibrator 335 may be positioned on the second surface 331s2 of the vibrating member 331.

[0106] According to one embodiment of this specification, the first vibrator 333 and the second vibrator 335 may be configured on either the first surface 331s1 or the second surface 331s2 of the vibrating member 331. For example, the first vibrator 333 may be configured on either the first surface 331s1 or the second surface 331s2 of the vibrating member 331. For example, the first vibrator 333 may be connected to or configured on the first surface 331s1 of the vibrating member 331. For example, the second vibrator 335 may be connected to or configured on a second surface 331s2 different from the first surface 331s1 of the vibrating member 331. For example, the second vibrator 335 may be connected to the first vibrator 333. For example, the second vibrator 335 may be stacked on the first vibrator 333. For example, the second vibrator 335 and the first vibrator 333 may be stacked vertically.

[0107] According to one embodiment of this specification, portions of the first vibrator 333 and the second vibrator 335 can be housed (or configured) on either the first surface 331s1 or the second surface 331s2 of the vibrating member 331. For example, the first vibrator 333 can be housed (or configured) on either the first surface 331s1 or the second surface 331s2 of the vibrating member 331. For example, the first vibrator 333 can be connected to or housed (or configured) on the first surface 331s1 of the vibrating member 331. For example, the second vibrator 335 can be connected to or housed (or configured) on a second surface 331s2 different from the first surface 331s1 of the vibrating member 331. For example, the second vibrator 335 can be connected to the first vibrator 333. For example, the second vibrator 335 can be stacked on the first vibrator 333. For example, the second vibrator 335 and the first vibrator 333 can be stacked vertically.

[0108] The first vibrating device 333 can be housed (or inserted) into the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331. For example, a portion of the first vibrating device 333 can be housed (or inserted) into the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331. For example, a portion of the first vibrating device 333 can be housed (or inserted) into the first home portion 331a formed (or configured) on the first surface 331s1 of the vibrating member 331 without a separate adhesive member or a separate intermediate member (or mediator).

[0109] The second vibrating device 335 can be housed (or inserted) into the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331. For example, a portion of the second vibrating device 335 can be housed (or inserted) into the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331. For example, a portion of the second vibrating device 335 can be housed (or inserted) into the second home portion 331b formed (or configured) on the second surface 331s2 of the vibrating member 331 without a separate adhesive member or a separate intermediate member (or mediator).

[0110] In the vibrating member 331, the first home portion 331a may be formed (or configured) in a concave shape from the first surface 331s1. For example, the first home portion 331a may be formed (or configured) in a concave shape from the first surface 331s1 so as to have a shape and depth corresponding to a part of the first vibrating device 333. The second home portion 331b may be formed (or configured) in a concave shape from the second surface 331s2. For example, the second home portion 331b may be formed (or configured) in a concave shape from the second surface 331s2 so as to have a shape and depth corresponding to a part of the second vibrating device 335.

[0111] According to one embodiment of this specification, if the vibrating member 331 is made of plastic material, the first surface 331s1 of the vibrating member 331 may be bonded (or welded) to a part of the first vibrating device 333 in a semi-cured state and then cured to become integrated with or joined to a part of the first vibrating device 333, and the second surface 331s2 of the vibrating member 331 may be bonded (or welded) to a part of the second vibrating device 335 in a semi-cured state and then cured to become integrated with or joined to a part of the second vibrating device 335, but the embodiments of this specification are not limited thereto. For example, a part of the first surface 331s1 of the vibrating member 331 in which a part of the first vibrating device 333 is housed (or inserted) can constitute the first home portion 331a of the vibrating member 331, and a part of the second surface 331s2 of the vibrating member 331 in which a part of the second vibrating device 335 is housed (or inserted) can constitute the second home portion 331b of the vibrating member 331.

[0112] The enclosure 310 may be adjacent to the sound generation module 330. For example, the enclosure 310 may include one or more enclosures (or enclosure members). One or more enclosures may include a first enclosure (or first enclosure member) 311 and a second enclosure (or second enclosure member) 312. For example, the second enclosure 312 may be connected to the first enclosure 311. For example, the enclosure 310 may be a housing, case, outer case, case member, housing member, cabinet, sealing member, sealing cap, sealing box, or sound box, and the embodiments herein are not limited thereto.

[0113] An enclosure 310 according to one embodiment of this specification may include one or more materials from among metallic materials and non-metallic materials (or composite non-metallic materials), but the embodiments herein are not limited thereto. For example, an enclosure 310 may include one or more materials from among metallic materials, plastics, fibers, carbon, and wood, but the embodiments herein are not limited thereto. For example, an enclosure 310 may be made of a metallic material such as aluminum, or a plastic material such as plastic or styrene, but the embodiments herein are not limited thereto. For example, a styrene material may be an ABS material. An ABS material may be acrylonitrile, butadiene, and styrene. For example, an enclosure 310 may be made of the same material as the vibrating member 331, or of a different material.

[0114] The enclosure 310 may be configured to be connected to (or coupled to) an object to be vibrated or a vehicle interior material 130 (see Figure 1 or Figure 2). The enclosure 310 may be configured to support or house (or accommodate) the sound generating module 330. The enclosure 310 may be configured to vibrate in response to the drive (or vibration or displacement) of the sound generating module 330. For example, the enclosure 310 may be configured to vibrate the vehicle interior material 130 in response to the drive (or vibration or displacement) of the sound generating module 330.

[0115] The enclosure 310 may include an internal space 313. The enclosure 310 may be located on the acoustic generation module 330, with the internal space 313 in between. For example, the enclosure 310 may be located on the rear of the acoustic generation module 330, with the internal space 313 in between. For example, the enclosure 310 may be connected to the acoustic generation module 330, with the internal space 313 in between. The enclosure 310 may be configured to cover the acoustic generation module 330, with the internal space 313 in between. For example, the enclosure 310 may be configured to cover a first face (or rear or bottom face) and a second face (or front or top face) opposite the first face of the acoustic generation module 330. The enclosure 310 may be configured to support the acoustic generation module 330, with the internal space 313 in between. For example, the enclosure 310 may be configured to support or cover the first surface (or rear or bottom surface) and the second surface (or front or top surface) of the sound generation module 330, respectively.

[0116] According to one embodiment of this specification, the internal space 313 of the enclosure 310 may be located between the acoustic generation module 330 and the enclosure 310. The internal space 313 may be located between the first enclosure 311 and the second enclosure 312. For example, the acoustic generation module 330 may be configured in the internal space 313 of the enclosure 310. For example, the acoustic generation module 330 may be configured in the internal space 313 between the first enclosure 311 and the second enclosure 312. The vibrating devices 333 and 335 of the acoustic generation module 330 may be located in the internal space 313 of the enclosure 310. For example, the first vibrating device 333 may be located between the first enclosure 311 and the vibrating member 331. For example, the second vibrator 335 may be located between the second enclosure 312 and the vibrating member 331. For example, the internal space 313 may be a housing space, storage space, gap space, air space, vibrating space, acoustic space, acoustic tube, or sealed space, and the embodiments herein are not limited thereto.

[0117] The first enclosure 311 may be located on the acoustic generation module 330 across the internal space 313. The first enclosure 311 may be connected to the acoustic generation module 330 across the internal space 313. The first enclosure 311 may be positioned or connected to the first face side (or rear side or bottom side) of the acoustic generation module 330 across the internal space 313. For example, the first enclosure 311 may be connected (or coupled) to the edge portion of the first face of the acoustic generation module 330 across the internal space 313. The first enclosure 311 may support the first face of the acoustic generation module 330 across the internal space 313. The first enclosure 311 may be positioned (or configured) between the vehicle interior material 130 and the acoustic generation module 330. For example, the first enclosure 311 may be configured to surround the first face of the acoustic generation module 330. The first enclosure 311 may be configured to cover the first surface of the sound generation module 330.

[0118] The first enclosure 311 may be vibrated by the drive (or vibration or displacement) of the sound generation module 330, and the vehicle interior material 130 may generate or output sound due to the vibration of the first enclosure 311. Thus, according to one embodiment of this specification, sound may be generated by the vibration of an object that is larger than the sound device 30 or by the vibration of the vehicle interior material 130, thereby improving the acoustic characteristics and / or sound pressure characteristics in the frequency range including the low-frequency range generated by the drive (or vibration or displacement) of the sound device 30.

[0119] The second enclosure 312 may be located on the acoustic generation module 330 across the internal space 313. The second enclosure 312 may be connected to the acoustic generation module 330 across the internal space 313. The second enclosure 312 may be positioned or connected to the second side (or front side or top side) of the acoustic generation module 330 opposite to the first side, across the internal space 313. For example, the second enclosure 312 may be connected (or coupled) to the edge portion of the second side of the acoustic generation module 330 across the internal space 313. The second enclosure 312 may support the second side of the acoustic generation module 330 across the internal space 313. The second enclosure 312 may be configured to surround the second side of the acoustic generation module 330. The second enclosure 312 may be configured to cover the second side of the acoustic generation module 330.

[0120] According to one embodiment of this specification, the second enclosure 312 may be configured to have a shape opposite to that of the first enclosure 311. For example, the first enclosure 311 and the second enclosure 312 may be configured to have a symmetrical shape or structure with respect to the sound generation module 330.

[0121] Each of the first vibrator 333 and the second vibrator 335 vibrates a vibrating member 331 to generate sound (or sound pressure or sound waves) in the internal space 313 of the enclosure 310. The enclosure 310 then vibrates in the internal space 313 due to the sound (or sound pressure or sound waves), and the vehicle interior material 130 vibrates in response to the vibration of the enclosure 310, thereby generating (or outputting) sound. For example, the vehicle interior material 130 can vibrate in response to the vibration of the first enclosure 311 caused by the sound (or sound pressure or sound waves) generated in the internal space 313 of the enclosure 310, thereby generating (or outputting) sound.

[0122] According to one embodiment of this specification, the internal space 313 of the enclosure 310 may include a first space 313a and a second space 313b.

[0123] The vibrating member 331 may be placed in the internal space 313 of the enclosure 310. The vibrating member 331 may be placed in the internal space 313 of the enclosure 310 and connected to a vibrating device. For example, the vibrating member 331 may be placed in the internal space 313 of the enclosure 310 and connected to one or more of the first vibrating device 333 and the second vibrating device 335. For example, the first vibrating device 333 and the second vibrating device 335 may be placed with the vibrating member 331 in between.

[0124] The vibrating member 331 may be positioned or configured between the first enclosure 311 and the second enclosure 312 of the enclosure 310. The vibrating member 331 may be configured to separate the internal space 313 of the enclosure 310 into a first space 313a and a second space 313b. For example, the internal space 313 of the enclosure 310 may be separated into a first space 313a and a second space 313b by the vibrating member 331. For example, the first space 313a of the internal space 313 may be provided between the first enclosure 311 and the vibrating member 331 of the enclosure 310 and may be covered by the vibrating member 331. The second space 313b of the internal space 313 may be provided between the second enclosure 312 and the vibrating member 331 of the enclosure 310 and may be covered by the vibrating member 331.

[0125] According to embodiments of this specification, the first vibrator 333 and the second vibrator 335 may be located in different spaces within the internal space 313 of the enclosure 310. For example, the first vibrator 333 may be located in the first space 313a. For example, the second vibrator 335 may be located in the second space 313b.

[0126] The first space 313a may be located between the acoustic generating module 330 and the first enclosure 311. For example, the first space 313a may be located between the first surface of the acoustic generating module 330 and the first enclosure 311. The first space 313a may be located between the first vibrator 333 and the first enclosure 311. The second space 313b may be located between the acoustic generating module 330 and the second enclosure 312. For example, the second space 313b may be located between a second surface of the acoustic generating module 330 that is different from (or opposite to) the first surface and the second enclosure 312. The second space 313b may be located between the second vibrator 335 and the second enclosure 312. For example, the internal space 313 may be a gap space, an air gap, a vibration space, an acoustic space, an acoustic tube, or a sealed space, and the embodiments herein are not limited thereto.

[0127] The sound generation module 330 generates sound pressure (or sound or sound wave) in the internal space 313 of the enclosure 310, causing the enclosure 310 to vibrate, and the vibration of the enclosure 310 can cause the object to be vibrated or the vehicle interior material 130 to vibrate. For example, the sound generation module 330 may be configured to vibrate the first enclosure 311 of the enclosure 310, thereby causing the object to be vibrated or the vehicle interior material 130 to vibrate. For example, the sound generation module 330 generates sound pressure (or sound or sound wave) in the internal space 313 of the enclosure 310, causing the first enclosure 311 to vibrate, and the vibration of the first enclosure 311 can cause the object to be vibrated or the vehicle interior material 130 to vibrate.

[0128] According to one embodiment of this specification, the first enclosure 311 may include an opening 310o.

[0129] The opening 310o may be configured to penetrate (or vertically penetrate) the first enclosure 311 along the thickness direction (Z) (or vertical direction) of the enclosure 310. The opening 310o may be connected to (or communicate with) the internal space 313. The opening 310o may be connected to the first space 313a. For example, the opening 310o may be configured to reduce the air pressure in the internal space 313 of the enclosure 310. For example, the opening 310o may be configured to reduce the air pressure in the first space 313a of the first enclosure 311, or in the first space 313a provided between the vibrating member 331 and the first enclosure 311. This can extend the low-frequency range, thereby improving the acoustic characteristics in the low-frequency range. For example, as the pressure (or air pressure) in the first space 313a decreases through the opening 310o, the displacement (or bending force) of the first vibrator 333 positioned between the vibrating member 331 and the first enclosure 311 may increase, thereby extending the low-frequency range and improving the low-frequency acoustic and / or sound pressure characteristics. Thus, the low-frequency acoustics (or sound pressure) generated by the vibrations of the first vibrator 333 and / or the second vibrator 335 may be improved.

[0130] According to one embodiment of this specification, the opening 310o may be positioned to correspond to the center of the sound generating module 330. For example, the opening 310o may be positioned to correspond to the centers of the vibrators 333 and 335. For example, the opening 310o may be positioned to correspond to the centers of the first vibrator 333 and the second vibrator 335. For example, the opening 310o may be positioned to correspond to the respective centers of the first vibrator 333 and the second vibrator 335. For example, the internal space 313 of the enclosure 310 may include a space connected to the opening 310o. For example, the internal space 313 of the enclosure 310 may include a first space 313a connected to the opening 310o.

[0131] According to the embodiments of this specification, the opening 310o may be smaller than the size of the first vibrator 333. For example, the opening 310o may be smaller than the size of the first vibrator 333 located on the vibrating member 331. For example, the opening 310o may include a line shape having a size (or length) smaller than the size of the first vibrator 333 located on the vibrating member 331. For example, the opening 310o may be a hole, slot, or slit, and the embodiments of this specification are not limited thereto. For example, the opening 310o may be an acoustic emission section, acoustic emission port, acoustic output section, acoustic output port, acoustic output hole, duct hole, or vent hole, and the embodiments of this specification are not limited thereto.

[0132] The opening 310o can be a space through which sound waves generated by the vibration of the sound generation module 330 are propagated (or transmitted) into the interior space of the vehicle. For example, vibrations of the sound generation module 330 can be transmitted through the opening 310o to an object that vibrates or to the interior space of the vehicle. For example, sound waves (or sound) due to the vibration of the sound generation module 330 can be transmitted (or output or emitted) into the interior space of the vehicle through the opening 310o. This allows the vibration amplitude (or displacement amplitude) of the vibrating member 331 associated with the vibration of the sound generation module 330 to be increased, thereby improving the acoustic characteristics and / or sound pressure characteristics generated in conjunction with the vibration of the vibrating member 331.

[0133] The first enclosure 311 may be positioned closer to the vehicle interior material 130 than the second enclosure 312. For example, the first enclosure 311, which includes an opening 310o, may be positioned closer to the vehicle interior material 130 than the second enclosure 312. This allows sound generated by vibrations from one or more of the first vibrator 333 and the second vibrator 335 to be output into the vehicle's interior space, thus allowing sound including low-frequency sounds to be output into the vehicle's interior space.

[0134] The first enclosure 311 may include an inclined surface 311s and an inner surface 311i. The first inclined surface 311s may be configured to be inclined between the inner surface 311i and the opening 310o of the first enclosure 311. The inclined surface 311s may be configured to guide the sound generated by the vibration of the sound generating module 330 into the interior space of the vehicle. This allows the sound from the vibration of the sound generating module 330 to be output into the interior space of the vehicle, and the acoustic characteristics and / or sound pressure characteristics of the sound, including the low-frequency range, may be further improved. For example, the inclined surface 311s may be a guide surface or an acoustic guide surface, and the embodiments herein are not limited thereto.

[0135] The vibrating member 331 may be positioned or configured to be spaced away from the opening 310o. The vibrating member 331 may be configured in the internal space 313 to be spaced away from the opening 310o. For example, the vibrating member 331 may be positioned in the internal space 313 and configured between the first enclosure 311 and the second enclosure 312. For example, the vibrating member 331 may be positioned in the internal space 313 and supported by at least one of the first enclosure 311 and the second enclosure 312. For example, the vibrating member 331 may be positioned to cover the internal space 313 of the enclosure 310. For example, the vibrating member 331 may be positioned to cover the internal space 313 of the enclosure 310. For example, the vibrating member 331 may be supported by the first enclosure 311 and the second enclosure 312.

[0136] According to one embodiment of this specification, the first enclosure 311 of the enclosure 310 may be positioned or configured on the first surface (or back surface) 331s1 of the vibrating member 331. The first enclosure 311 of the enclosure 310 may be connected (or coupled) to the first surface 331s1 of the vibrating member 331. For example, the first enclosure 311 may be connected (or coupled) to the edge portion of the first surface 331s1 of the vibrating member 331. The first enclosure 311 may be configured to support the edge portion of the first surface 331s1 of the vibrating member 331. For example, the first enclosure 311 may be configured to cover the first surface of the sound generating module 330. For example, the first enclosure 311 may be configured to surround the first surface of the sound generating module 330.

[0137] According to one embodiment of this specification, the second enclosure 312 may be positioned on or configured on the second surface (or front surface) 331s2 of the vibrating member 331. The second enclosure 312 may be configured to support the edge portion of the second surface 331s2 of the vibrating member 331. The second enclosure 312 of the enclosure 310 may be connected (or coupled) to the second surface 331s2 of the vibrating member 331. For example, the second enclosure 312 may be connected (or coupled) to the edge portion of the second surface 331s2 of the vibrating member 331. For example, the second enclosure 312 may be configured to cover the second surface of the sound generating module 330. For example, the second enclosure 312 may be configured to surround the second surface of the sound generating module 330.

[0138] An acoustic device 30 according to one embodiment of this specification may further include a coupling member 320. The coupling member 320 may be configured to connect or couple the vibrating member 331 and the enclosure 310 to each other. For example, the coupling member 320 may be located between the edge portion of the vibrating member 331 and the enclosure 310. The coupling member 320 may include a first coupling member 321 and a second coupling member 322.

[0139] The first coupling member 321 may be located between the vibrating member 331 and the first enclosure 311. The first coupling member 321 may be located between the edge portion of the vibrating member 331 and the edge portion of the first enclosure 311. For example, the edge portion of the first enclosure 311 may be connected to or coupled to the first surface 331s1 of the vibrating member 331 by the first coupling member 321.

[0140] The second coupling member 322 may be located between the vibrating member 331 and the second enclosure 312. The second coupling member 322 may be located between the edge portion of the vibrating member 331 and the edge portion of the second enclosure 312. For example, the edge portion of the second enclosure 312 may be connected to or coupled to the second surface 331s2 of the vibrating member 331 by the second coupling member 322.

[0141] According to one embodiment of this specification, the coupling member 320 may be configured to minimize or prevent the transmission of vibrations from the vibrating member 331 to the enclosure 310. The coupling member 320 may include material properties suitable for vibration isolation. For example, the coupling member 320 may be made of an elastic material. For example, the coupling member 320 may be made of an elastic material for vibration absorption (or shock absorption). The coupling member 320 according to one embodiment of this specification may be made of a polyurethane material or a polyolefin material, but the embodiments of this specification are not limited thereto. For example, the coupling member 320 may include one or more of adhesives, double-sided adhesives, double-sided tapes, double-sided adhesive tapes, double-sided adhesive foam tapes, double-sided adhesive foam tapes, double-sided pads, double-sided foam pads, double-sided adhesive foam pads, and double-sided cushion tapes, but the embodiments of this specification are not limited thereto.

[0142] Other coupling members 320 according to other embodiments of this specification may be configured to minimize or prevent the transmission of vibrations of the vibrating member 331 to the enclosure 310, and to reduce the reflection of sound waves generated and incident by the vibrations of the vibrating member 331.

[0143] An acoustic device 30 according to one embodiment of this specification includes an acoustic generating module 330 having a bimorph structure, which can improve the acoustic characteristics and / or sound pressure characteristics of sounds including the low-frequency range. An acoustic device 30 according to one embodiment of this specification includes an enclosure 310 having an opening 310o, so as the air pressure in the internal space 313 of the enclosure 310 decreases, the low-frequency range can be extended, thus improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency range.

[0144] In one embodiment of this specification, the sound device 30, through the integrated structure of the vibrating member 331 and the vibrating devices 333 and 335, transmits the vibrations of the vibrating devices 333 and 335 to the vibrating member 331 without loss, thereby improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 331. In one embodiment of this specification, the sound device 30 omits separate adhesive members or intermediate members for coupling (or bonding) the vibrating devices 333 and 335 and the vibrating member 331 to each other, thus simplifying the manufacturing process of the sound device and reducing the manufacturing cost of the sound device.

[0145] Figure 5 is a cross-sectional view showing the vibration device of the sound generation module shown in Figures 3 and 4, according to one embodiment of this specification.

[0146] Referring to Figures 3 to 5, an acoustic generation module 330 according to one embodiment of this specification may include vibration devices 333 and 335. Each of the vibration devices 333 and 335 may include one or more vibration generators 1310. Each of the first vibration device 333 and the second vibration device 335 of the vibration devices 333 and 335 may include one or more vibration generators 1310.

[0147] The vibration generator 1310 may include a piezoelectric material having piezoelectric properties. The vibration generator 1310 can vibrate (or displace or drive) a vibrating member (or vehicle interior material) by vibration (or displacement or drive) of the piezoelectric material due to a drive signal (or voice signal or acoustic signal) applied to the piezoelectric material. For example, the vibration generator 1310 can vibrate (or displace or drive) by alternately contracting and / or expanding due to the piezoelectric effect (or piezoelectric properties). For example, the vibration generator 1310 can vibrate (or displace or drive) in the vertical direction (or thickness direction) (Z) by alternately contracting and / or expanding due to the inverse piezoelectric effect of the piezoelectric material. For example, the vibration generator 1310 can vibrate or be mechanically displaced (or vibrate or drive) in response to an electrical signal applied from the outside to a piezoelectric material including a piezoelectric ceramic.

[0148] The vibration generator 1310 may be composed of a ceramic piezoelectric material capable of realizing relatively strong vibrations, or a piezoelectric ceramic having a perovskite crystal structure. For example, the vibration generator 1310 may be a vibration generating element, a vibration film, a vibrator, an active vibrator, an active vibration generator, an actuator, an exciter, a film actuator, a film exciter, an ultrasonic actuator, or an active vibration member, but the embodiments specified herein are not limited thereto.

[0149] One or more vibration generators 1310 according to one embodiment of this specification may include a vibration generating unit 1311.

[0150] The vibration generating unit 1311 may be configured to vibrate by a piezoelectric effect in response to a drive signal. For example, the vibration generating unit 1311 may include a piezoelectric vibrator. The vibration generating unit 1311 may include at least one of piezoelectric inorganic materials and piezoelectric organic materials. For example, the vibration generating unit 1311 may be a vibrating element, a piezoelectric element, a piezoelectric element section, a piezoelectric element layer, a piezoelectric structure, a piezoelectric vibrator section, or a piezoelectric vibrator layer, but the embodiments herein are not limited thereto.

[0151] The vibration generating unit 1311 according to one embodiment of this specification may include a vibration unit 1311a, a first electrode unit 1311b, and a second electrode unit 1311c.

[0152] The vibrating portion 1311a may include a piezoelectric material or an electroactive material that exhibits a piezoelectric effect. For example, a piezoelectric material may have the characteristic that a potential difference is generated by dielectric polarization due to a change in the relative positions of positive (+) and negative (-) ions while pressure or torsional phenomena act on its crystal structure due to an external force, and conversely, vibration is generated by an electric field caused by an applied voltage. For example, the vibrating portion 1311a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite, but the embodiments herein are not limited to these.

[0153] The vibrating part 1311a may be composed of a ceramic material capable of realizing relatively strong vibrations, or a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite-based crystal structure may be an oriented plate-shaped structure having piezoelectric and / or inverse piezoelectric effects. The perovskite-based crystal structure is represented by the chemical formula ABO3, where the A site may consist of a divalent metal element and the B site may consist of a tetravalent metal element. In one embodiment of this specification, in the chemical formula ABO3, the A and B sites may be cations, and O may be anion. For example, the vibrating part 1311a may include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, and the embodiments herein are not limited thereto.

[0154] Piezoelectric ceramics may consist of single-crystal ceramics having a single-crystal structure, or ceramic materials or polycrystalline ceramics having a polycrystalline structure. Single-crystal ceramic piezoelectric materials may include, but are not limited to, α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7, or ZnO. Polycrystalline ceramic piezoelectric materials may include PZT (lead zirconate titanate) materials containing lead (Pb), zirconium (Zr), and titanium (Ti), or PZNN (lead zirconate nickel niobate) materials containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but are not limited to, but are not limited to,

[0155] The first electrode portion 1311b may be positioned on the first surface (or top surface or front surface) 1311s1 of the vibrating portion 1311a. The first electrode portion 1311b may be the same size as the vibrating portion 1311a or smaller in size than the vibrating portion 1311a, but the embodiments herein are not limited thereto. For example, the first electrode portion 1311b may be positioned (or configured) on at least a portion of the first surface 1311s1 of the vibrating portion 1311a. For example, the first electrode portion 1311b may be configured to have a pattern shape or line shape corresponding to at least a portion of the first surface 1311s1 of the vibrating portion 1311a, and may be connected (or in contact with) or directly connected (or in contact with) at least a portion of the first surface 1311s1 of the vibrating portion 1311a.

[0156] The second electrode portion 1311c may be positioned on a second surface (or bottom or back surface) 1311s2 of the vibrating portion 1311a that is different from or opposite to the first surface 1311s1. The second electrode portion 1311c may be the same size as the vibrating portion 1311a or smaller in size than the vibrating portion 1311a. For example, the second electrode portion 1311c may be positioned (or configured) on at least a portion of the second surface 1311s2 of the vibrating portion 1311a. For example, the second electrode portion 1311c may be configured to have a pattern shape or line shape corresponding to at least a portion of the second surface 1311s2 of the vibrating portion 1311a, and may be connected (or in contact with) or directly connected (or in contact with) at least a portion of the second surface 1311s2 of the vibrating portion 1311a. For example, the second electrode portion 1311c may have the same shape as the vibrating portion 1311a, but the embodiments herein are not limited thereto.

[0157] One or more of the first electrode portion 1311b and the second electrode portion 1311c according to one embodiment of this specification may consist of a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, transparent or translucent conductive materials may include, but are not limited to, ITO (indium tin oxide) or IZO (indium zinc oxide). Opaque conductive materials may include, but are not limited to, gold (Au), silver (Ag), platinum (Pt), palladium (Pd), molybdenum (Mo), magnesium (Mg), carbon, or silver (Ag) containing glass frit, or alloys thereof. For example, each of the first electrode portion 1311b and the second electrode portion 1311c may contain silver (Ag) with low resistivity to improve the electrical and / or vibrational properties of the vibrating portion 1311a. For example, carbon may further include one or more carbon materials, including carbon black, Ketjen black, carbon nanotubes, and graphite, but the examples herein are not limited to these.

[0158] The vibrating portion 1311a can be polarized (or polled) by a constant voltage applied to the first electrode portion 1311b and the second electrode portion 1311c in a constant temperature atmosphere or a temperature atmosphere changing from high temperature to room temperature, but the embodiments herein are not limited thereto. For example, the polarization direction (or polling direction) formed on the vibrating portion 1311a can be formed from the first electrode portion 1311b to the second electrode portion 1311c, or oriented (or arranged), but is not limited thereto. For example, the polarization direction (or polling direction) formed on the vibrating portion 1311a can be formed from the second electrode portion 1311c to the first electrode portion 1311b, or oriented (or arranged).

[0159] The vibrating section 1311a can vibrate by repeatedly contracting and / or expanding alternately due to the inverse piezoelectric effect caused by a drive signal applied to the first electrode section 1311b and the second electrode section 1311c from the outside. For example, the vibrating section 1311a can vibrate in the vertical (or thickness direction) and planar directions by a signal applied to the first electrode section 1311b and the second electrode section 1311c. By being displaced (or vibrating or driven) by contraction and / or expansion in the planar direction, the vibration characteristics of the vibration generator 1310, including its acoustic characteristics and / or sound pressure characteristics, can be improved.

[0160] According to one embodiment of this specification, a portion of the vibration generating portion 1311 can be housed (or inserted) into the vibrating member 331. For example, the first surface of the vibration generating portion 1311 adjacent to the vibrating member 331 can be housed (or inserted) into a portion of the vibrating member 331. For example, either the first electrode portion 1311b or the second electrode portion 1311c can be housed (or inserted) into a portion of the vibrating member 331. For example, the first electrode portion 1311b of the two electrode portions 1311c can be housed (or inserted) into a portion of the vibrating member 331. For example, the first electrode portion 1311b can be housed (or inserted) into the home portions 331a and 331b of the vibrating member 331. As a result, the first electrode portion 1311b can be integrated with the vibrating member 331 or the home portions 331a and 331b of the vibrating member 331.

[0161] According to one embodiment of this specification, the first electrode portion 1311b in the first vibrator 333 can be housed (or inserted) into the first home portion 331a of the vibrating member 331. This allows the first vibrator 333 to be integrated with the vibrating member 331 or the first surface 331s1 of the vibrating member 331 by the first electrode portion 1311b housed (or inserted) into the first home portion 331a of the vibrating member 331. For example, the second electrode portion 1311c in the second vibrator 335 can be housed (or inserted) into the second home portion 331b of the vibrating member 331. This allows the second vibrator 335 to be integrated with the vibrating member 331 or the second surface 331s2 of the vibrating member 331 by the first electrode portion 1311b housed (or inserted) into the second home portion 331b of the vibrating member 331. Therefore, the vibrations of the first vibrator 333 and / or the second vibrator 335 are efficiently transmitted to the vibrating member 331 without loss, thereby improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 331.

[0162] According to one embodiment of this specification, if the vibrating member 331 is made of plastic material, the first surface 331s1 of the vibrating member 331 may be bonded (or welded) to the first electrode portion 1311b in the first vibrating device 333 in a semi-cured state, and then hardened to become integrated with or joined to the first electrode portion 1311b in the first vibrating device 333. The second surface 331s2 of the vibrating member 331 may be bonded (or welded) to the second electrode portion 1311c in the second vibrating device 335 in a semi-cured state, and then hardened to become integrated with or joined to the first electrode portion 1311b in the second vibrating device 335. However, the embodiments of this specification are not limited thereto. For example, a portion of the first surface 331s1 of the vibrating member 331 in which the first electrode portion 1311b in the first vibrating device 333 is housed (or inserted) can constitute the first home portion 331a of the vibrating member 331, and a portion of the second surface 331s2 of the vibrating member 331 in which the first electrode portion 1311b in the second vibrating device 335 is housed (or inserted) can constitute the second home portion 331b of the vibrating member 331.

[0163] According to one embodiment of this specification, a portion of the vibrating part 1311a in the first vibrating device 333 may be in contact with or directly in contact with the vibrating member 331. For example, the edge of the vibrating part 1311a in the first vibrating device 333 may be in contact with or directly in contact with the first surface 331s1 of the vibrating member 331. This allows the vibration of the vibrating part 1311a in the first vibrating device 333 to be efficiently transmitted to the vibrating member 331 without loss. A portion of the vibrating part 1311a in the second vibrating device 335 may be in contact with or directly in contact with the vibrating member 331. For example, the edge of the vibrating part 1311a in the second vibrating device 335 may be in contact with or directly in contact with the second surface 331s2 of the vibrating member 331. This allows the vibration of the vibrating part 1311a in the second vibrating device 335 to be efficiently transmitted to the vibrating member 331 without loss.

[0164] A vibration generator 1310 (or sound generation module 330) or vibration device 333, 335 according to one embodiment of this specification may further include a cover member 1313.

[0165] The cover member 1313 may be positioned on a second surface of the vibration generating unit 1311, opposite to the first surface of the vibration generating unit 1311. For example, the cover member 1313 may be configured to cover the second electrode portion 1311c of the vibration generating unit 1311. For example, the cover member 1313 may be configured on a second surface of the vibration generating unit 1311 that includes the second electrode portion 1311c. The cover member 1313 may be configured to protect the second surface of the vibration generating unit 1311 that includes the second electrode portion 1313c. For example, the cover member 1313 may be configured to be larger than the vibration generating unit 1311.

[0166] The cover member 1313 in the first vibrator 333 may be a first cover member. For example, the first vibrator 333 may include a first cover member configured on the second surface of the vibration generating section 1311 so as to cover the second electrode section 1313c. For example, the cover member 1313 in the second vibrator 335 may be a second cover member. For example, the second vibrator 335 may include a second cover member configured on the second surface of the vibration generating section 1311 so as to cover the second electrode section 1311c.

[0167] The material of the cover member 1313 (or the first and second cover members) may consist of polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, or cycloolefin copolymer, but the examples herein are not limited to these.

[0168] The cover member 1313 (or the first and second cover members) may be connected to or bonded to the second surface of the vibration generating section 1311 or the second electrode section 1311c via the adhesive layer 1315. For example, the adhesive layer 1315 may be placed (or interposed) between the cover member 1313 (or the first and second cover members) and the first surface of the vibration generating section 1311. For example, the cover member 1313 (or the first and second cover members) may be connected to or bonded to the second surface of the vibration generating section 1311, including the second electrode section 1311c, by a film lamination process mediated by the adhesive layer 1315.

[0169] The edge portion of the cover member 1313 (or first cover member) on the first vibrator 333 is connected to or can be joined to the first surface 331s1 of the vibrating member 331 surrounding the vibration generating portion 1311 via the adhesive layer 1315. This allows the adhesive layer 1315 to surround the vibration generating portion 1311 of the first vibrator 333. For example, the vibration generating portion 1311 of the first vibrator 333 may be surrounded or completely surrounded by the first surface 331s1 of the vibrating member 331 and the adhesive layer 1315.

[0170] The edge portion of the cover member 1313 (or second cover member) on the second vibrator 335 may be connected or joined to the second surface 331s2 of the vibrating member 331 surrounding the vibration generating portion 1311 via the adhesive layer 1315. This allows the adhesive layer 1315 to surround the vibration generating portion 1311 of the second vibrator 335. For example, the vibration generating portion 1311 of the second vibrator 335 may be surrounded or completely surrounded by the second surface 331s2 of the vibrating member 331 and the adhesive layer 1315.

[0171] The adhesive layer 1315 between the cover member 1313 (or first cover member) in the first vibrating device 333 and the first surface 331s1 of the vibrating member 331 may be the first adhesive layer. The adhesive layer 1315 between the cover member 1313 (or second cover member) in the second vibrating device 335 and the second surface 331s2 of the vibrating member 331 may be the second adhesive layer.

[0172] The adhesive layer 1315 (or the first and second adhesive layers) according to the examples herein may contain an electrically insulating material that is compressible and resilient while maintaining adhesive properties. For example, the adhesive layer 1315 (or the first and second adhesive layers) may contain, but is not limited to, epoxy resin, acrylic resin, silicone resin, urethane resin, PSA (pressure sensitive adhesive), OCA (optically cleared adhesive), or OCR (optically cleared resin).

[0173] The adhesive layer 1315 (or the first and second adhesive layers) according to other embodiments of this specification may include an insulating adhesive material. For example, the adhesive layer 1315 (or the first and second adhesive layers) may include one or more of a thermosetting adhesive, a photocurable adhesive, and a heat-fusible adhesive. For example, the adhesive layer 1315 (or the first and second adhesive layers) may include a thermosetting adhesive or a heat-fusible adhesive. The heat-fusible adhesive may be of the heat-activated type or the thermosetting type. For example, the adhesive layer 1315 (or the first and second adhesive layers) containing a heat-fusible adhesive may be connected to or bonded to the vibrating member 331 so as to surround the vibration generating part 1311 by heat and pressure.

[0174] Figure 6 shows the vibrating part shown in Figure 5 according to another embodiment of this specification.

[0175] Referring to Figure 6, the vibrating portion 1311a according to other embodiments of this specification may include a plurality of first portions 1311a1 and a plurality of second portions 1311a2. For example, the plurality of first portions 1311a1 and a plurality of second portions 1311a2 may be arranged alternately and repeatedly along a second direction (Y) (or a first direction (X)).

[0176] Each of the plurality of first parts 1311a1 may include an inorganic material having a piezoelectric effect (or piezoelectric properties). For example, each of the plurality of first parts 1311a1 may include at least one of a piezoelectric inorganic material and a piezoelectric organic material. For example, each of the plurality of first parts 1311a1 may be an inorganic part, an inorganic material part, a piezoelectric part, a piezoelectric material part, or an electroactive part, but the embodiments herein are not limited thereto.

[0177] According to one embodiment of this specification, each of the plurality of first portions 1311a1 has a first width (W1) parallel to a second direction (Y) (or a first direction (X)) and can be extended along the first direction (X) (or a second direction (Y)). Since each of the plurality of first portions 1311a1 is made of substantially the same material as the vibrating portion 1311a described with reference to Figure 5, a redundant description thereof is omitted.

[0178] Each of the multiple second parts 1311a2 may be positioned between multiple first parts 1311a1. For example, each of the multiple first parts 1311a1 may be positioned between two adjacent second parts 1311a2. Each of the multiple second parts 1311a2 has a second width (W2) parallel to the second direction (Y) (or first direction (X)) and may extend along the first direction (X) (or second direction (Y)). The first width (W1) may be the same as or different from the second width (W2). For example, the first part 1311a1 and the second part 1311a2 may include line shapes or stripe shapes that are the same as or different in size from each other.

[0179] Each of the plurality of second portions 1311a2 may be configured to fill the gap between two adjacent first portions 1311a1. Each of the plurality of second portions 1311a2 may be connected to or bonded to the side surface of an adjacent first portion 1311a1 by being configured to fill the gap between two adjacent first portions 1311a1. According to one embodiment of the specification, each of the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be arranged side by side with each other in the same plane (or on the same layer). This allows the vibrating portion 1311a to be extended to a desired size or length by the lateral connection (or bonding) of the first portions 1311a1 and the second portions 1311a2.

[0180] According to the embodiments herein, each of the plurality of second parts 1311a2 can absorb the impact applied to the first part 1311a1, improve the durability of the first part 1311a1, and provide flexibility to the vibrating part 1311a. Each of the plurality of second parts 1311a2 may include an organic material having flexible properties. For example, each of the plurality of second parts 1311a2 may be one or more of epoxy polymers, acrylic polymers, and silicone polymers, but the embodiments herein are not limited thereto. For example, each of the plurality of second parts 1311a2 may be an organic part, an organic material part, an adhesive part, an expandable part, a bendable part, a damping part, or a ductile (e.g., soft and / or elastic) part, but the embodiments herein are not limited thereto.

[0181] The first surfaces of each of the multiple first parts 1311a1 and the multiple second parts 1311a2 may be commonly connected to the first electrode portion 1311b. The second surfaces of each of the multiple first parts 1311a1 and the multiple second parts 1311a2 may be commonly connected to the second electrode portion 1311c. For example, one or all of the first electrode portion 1311b and the second electrode portion 1311c may be formed with patterned electrodes that correspond only to the multiple first parts 1311a1.

[0182] In other embodiments of this specification, the vibrating portion 1311a can have a single thin film shape by arranging (or connecting) a plurality of first portions 1311a1 and second portions 1311a2 on the same plane. As a result, the vibration generating portion 1311 or vibration generator 1310 including the vibrating portion 1311a of other embodiments of this specification can vibrate by the first portion 1311a1 which has vibration characteristics, and can be bent into a curved shape by the flexible second portion 1311a2.

[0183] Figure 7 shows the vibrating part shown in Figure 5, relating to another embodiment of this specification. Figure 7 shows another embodiment of the vibrating part described with reference to Figure 5.

[0184] Referring to Figure 7, the vibrating section 1311a according to other embodiments of this specification may include a plurality of first sections 1311a3 and a second section 1311a4 positioned between the plurality of first sections 1311a3.

[0185] Each of the multiple first parts 1311a3 may be arranged so as to be spaced apart from one another along the first direction (X) and the second direction (Y). For example, each of the multiple first parts 1311a3 may be arranged in a grid pattern, having a hexahedral shape with equal size to one another, but the embodiments herein are not limited thereto. For example, each of the multiple first parts 1311a3 may have the shape of a disc, ellipse, or polygonal plate with equal size to one another, but the embodiments herein are not limited thereto.

[0186] Since each of the multiple first parts 1311a3 is made of substantially the same material as the first part 1311a1 described with reference to Figure 5, redundant explanations of it can be omitted or simplified.

[0187] The second portion 1311a4 may be positioned between multiple first portions 1311a3 along the first direction (X) and the second direction (Y). The second portion 1311a4 may be connected to or bonded to adjacent first portions 1311a3 by filling the gap between two adjacent first portions 1311a3 or by being configured to enclose each of the multiple first portions 1311a3. Since the second portion 1311a4 is made of substantially the same material as the second portion 1311a2 described with reference to Figure 6, any redundant description of it can be omitted or simplified.

[0188] The first surfaces of each of the multiple first portions 1311a3 and second portions 1311a4 can be commonly connected to the first electrode portion 1311b. The second surfaces of each of the multiple first portions 1311a3 and second portions 1311a4 can be commonly connected to the second electrode portion 1311c. Alternatively, one or all of the other, for example, the first electrode portion 1311b and the second electrode portion 1311c, can be formed with patterned electrodes that correspond only to the multiple first portions 1311a3.

[0189] In other embodiments of this specification, the vibrating portion 1311a can have a single thin film shape by arranging (or connecting) a plurality of first portions 1311a3 and second portions 1311a4 on the same plane. As a result, the vibration generating portion 1311 or vibration generator 1310 including the vibrating portion 1311a in other embodiments of this specification can vibrate by the first portion 1311a3 which has vibration characteristics and can be bent into a curved shape by the flexible second portion 1311a4.

[0190] Figure 8 shows an acoustic device according to another embodiment of this specification.

[0191] Referring to Figure 8, another embodiment of the acoustic device 30 according to this specification may include an enclosure 310, an acoustic generation module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generation module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 7, so the same reference numerals can be used, and redundant descriptions can be omitted or simplified.

[0192] Other embodiments of the acoustic device 30 according to this specification may further include a connecting member 350.

[0193] The connecting member 350 may be located between the object to be vibrated and the acoustic device 30. The connecting member 350 may be located on the back of the acoustic device 30. For example, the connecting member 350 may be located on the back of the enclosure 310. For example, the connecting member 350 may be configured or positioned on the back of the first enclosure 311. For example, the connecting member 350 may be positioned between the enclosure 310 and the vehicle interior material (or the object to be mounted). For example, the connecting member 350 may be positioned between the first enclosure 311 and the vehicle interior material (or the object to be mounted). For example, the object to be mounted may be a structure to which the acoustic device 30 or enclosure 310 is mounted. For example, the connecting member 350 may be located between the vehicle interior material 130 shown in Figure 1 or Figure 2 and the acoustic device 30 or enclosure 310. For example, the connecting member 350 may be a coupling member, an intermediate member, or a buffer member, but the embodiments herein are not limited thereto.

[0194] The connecting member 350 may be configured to transmit vibrations of the first enclosure 311 to the vehicle interior material 130 due to vibrations of the sound generation module 330. As a result, the vehicle interior material 130 can vibrate and generate (or output) sound due to the vibrations transmitted through the connecting member 350.

[0195] According to other embodiments of this specification, the first enclosure 311 may include an internal surface 311i and an external surface. The internal surface 311i of the first enclosure 311 may face the vibrating member 331. The external surface of the first enclosure 311 may be the surface opposite to the internal surface 311i. The connecting member 350 may be connected around the opening 310o of the external surface of the first enclosure 311.

[0196] According to other embodiments of this specification, the connecting member 350 may be made of a rigid material. The connecting member 350 may be made of a material having high elasticity (or Young's modulus) and high tensile strength. For example, the connecting member 350 may be rubber, but the embodiments of this specification are not limited thereto. For example, the rubber may be ethylene propylene rubber or urethane rubber, but the embodiments of this specification are not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of this specification are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of this specification are not limited thereto. For example, the tensile strength of EPDM may be 50 kg / cm². 2 ~200 kg / cm 2 This is possible, but the examples herein are not limited to this.

[0197] According to embodiments of this specification, the connecting member 350 may further include a hole 350o (or a first hole or opening hole). For example, the connecting member 350 may further include a hole 350o connected to an opening 310o in the enclosure 310 or the first enclosure 311. The hole 350o may be positioned corresponding to (or superimposed on) the opening 310o. This allows sound from vibrations of the sound generating module 330 to be output into the vehicle's interior space through the opening 310o and the hole 350o. The hole 350o may have the same shape as the opening 310o, but embodiments of this specification are not limited thereto. For example, the hole 350o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but embodiments of this specification are not limited thereto.

[0198] According to one embodiment of this specification, the connecting member 350 may be protected by a release film (or protective film) 351. The release film 351 may be attached to the adhesive surface of the connecting member 350. The release film 351 may be peeled off (or removed) from the connecting member 350 when the sound device 30, including the connecting member 350, is attached to the interior material (or object to be attached) of a vehicle.

[0199] The connecting member 350 according to one embodiment of this specification can prevent unwanted vibrations of the sound generating module 330 from being transmitted to the interior space of the vehicle, thereby improving the acoustic characteristics and / or sound pressure characteristics of the sound device 30. Furthermore, the connecting member 350 can reduce the heat generated when the sound generating module 330 vibrates.

[0200] Figure 9 shows an acoustic device according to another embodiment of this specification.

[0201] Referring to Figure 9, another embodiment of the acoustic device 30 according to this specification may include an enclosure 310, an acoustic generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 7, so the same reference numerals can be used, and redundant descriptions can be omitted or simplified.

[0202] Other embodiments of the acoustic device 30 according to this specification may further include a flexible member 360.

[0203] The flexible member 360 may be located between the object to be vibrated and the acoustic device 30. The flexible member 360 may be located on the back of the acoustic device 30. For example, the flexible member 360 may be located on the back of the enclosure 310. For example, the flexible member 360 may be configured or positioned on the back of the first enclosure 311. For example, the flexible member 360 may be positioned between the enclosure 310 and the vehicle interior material (or the object to be mounted). For example, the flexible member 360 may be positioned between the first enclosure 311 and the vehicle interior material (or the object to be mounted). For example, the object to be mounted may be a structure to which the acoustic device 30 or enclosure 310 is mounted. For example, the flexible member 360 may be located between the vehicle interior material 130 shown in Figure 1 or Figure 2 and the acoustic device 30 or enclosure 310. For example, the flexible member 360 may be a connecting member, an intermediate member, or a buffer member, but the embodiments herein are not limited thereto.

[0204] According to one embodiment of this specification, the first enclosure 311 may include an internal surface 311i and an external surface. The internal surface 311i of the first enclosure 311 may face the vibrating member 331. The external surface of the first enclosure 311 may be the surface opposite to the internal surface 311i. The flexible member 360 may be connected around the opening 310o of the external surface of the first enclosure 311.

[0205] According to one embodiment of this specification, the flexible member 360 may be made of a different material than the connecting member 350. The elasticity (or Young's modulus) of the flexible member 360 may be different from that of the connecting member 350. For example, the flexible member 360 may be made of a material having low elasticity. The flexible member 360 may be made of a soft material. For example, the flexible member 360 may be ethylene propylene rubber or urethane rubber, but the embodiments of this specification are not limited thereto. For example, ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), and the EPDM may be made of EPDM with a different foaming rate to have low elasticity, but the embodiments of this specification are not limited thereto. For example, the flexible member 360 may be made of single-sided tape, single-sided sponge tape, single-sided porous tape, single-sided cushion tape, double-sided tape, double-sided sponge tape, double-sided porous tape, or double-sided cushion tape, but the embodiments of this specification are not limited thereto.

[0206] According to one embodiment of this specification, the flexible member 360 may further include a hole 360o (or a second hole or opening hole). For example, the flexible member 360 may further include a hole 360o connected to the opening 310o. The hole 360o may be positioned corresponding to the opening 310o. This allows sound from vibrations of the sound generating module 330 to be output into the vehicle's interior space through the opening 310o and the hole 360o. The hole 360o may have the same shape as the opening 310o, but the embodiments of this specification are not limited thereto. For example, the hole 360o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiments of this specification are not limited thereto. The flexible member 360 according to the embodiments of this specification can absorb external impacts, and thus can protect the sound device 30 from external impacts. For example, the flexible member 360 may be a porous member, a buffer member, or a cushioning member, but the embodiments of this specification are not limited thereto.

[0207] According to one embodiment of this specification, the flexible member 360 may be protected by a release film (or protective film) 361. The release film 361 may be attached to the adhesive surface of the flexible member 360. The release film 361 may be peeled off (or removed) from the flexible member 360 when the sound device 30, including the flexible member 360, is attached to the interior material (or object to be attached) of a vehicle.

[0208] The flexible member 360 according to one embodiment of this specification can absorb external impacts, thereby preventing damage to the sound generating module 330. This can improve the durability and reliability of the sound device 30.

[0209] According to other embodiments of this specification, the flexible member 360 may be configured in the enclosure 310 instead of the connecting member 350 described with reference to Figure 8, or it may be laminated on the connecting member 350. For example, the connecting member 350 and the flexible member 360 may be positioned between the first enclosure 311 and the vehicle interior material (or mounting object). For example, the connecting member 350 may be connected to the first enclosure 311, and the flexible member 360 may be positioned between the connecting member 350 and the vehicle interior material (or mounting object).

[0210] Figure 107 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 11 is a cross-sectional view showing a vibration device of the acoustic generation module shown in Figure 8 according to one embodiment of this specification.

[0211] Referring to Figures 10 and 11, the acoustic device 30 according to other embodiments of this specification may include an enclosure 310, an acoustic generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 7, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0212] Other embodiments of this specification of the acoustic device 30 may include vibration devices 333, 335, which include a plurality of vibration generators 333A, 333B, 335A, 335B.

[0213] The first vibration device 333 of the vibration devices 333, 335 may include a plurality of vibration generators 333A, 333B. The first vibration device 333 may include a first vibration generator 333A and a second vibration generator 333B. For example, the first vibration generator 333A may be stacked on top of the second vibration generator 333B.

[0214] The first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may be stacked or laminated on top of each other so as to be displaced (or driven or vibrated) in the same direction to maximize the amplitude displacement of the vibrating member 331. For example, the first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may be substantially the same size as each other, but the embodiments herein are not limited thereto. For example, the first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 may be substantially the same size as each other within a manufacturing tolerance range. This allows the first vibration generator 333A and the second vibration generator 333B of the first vibration device 333 to increase or maximize the amplitude displacement of the vibrating member 331.

[0215] The first vibration generator 333A of the first vibration device 333 is substantially the same as the vibration generator 1310 of the first vibration device 333 described with reference to Figures 3 to 7, so a redundant explanation of it will be omitted.

[0216] The second vibration generator 333B of the first vibration device 333 may be connected (or coupled) to or attached to the cover member 1313 of the first vibration generator 333A.

[0217] In the first vibration device 333, the second vibration generator 333B may include a vibration generating section 1311 comprising a vibration section 1311a, a first electrode section 1311b, and a second electrode section 1311c. The second vibration generator 333B may further include a cover member 1313. The cover member 1313 may be connected (or bonded) to the second surface of the vibration generating section 1311 via an adhesive layer 1315. The vibration generating section 1311, cover member 1313, and adhesive layer 1315 of the second vibration generator 333B are substantially identical to those of the vibration generating section 1311, cover member 1313, and adhesive layer 1315 of the first vibration device 333 described with reference to Figures 3 to 7, so redundant explanations of them will be omitted.

[0218] The first vibration device 333 may further include an intermediate member 333M. In the first vibration device 333, the intermediate member 333M may be positioned between or connected to the first vibration generator 333A and the second vibration generator 333B. For example, the intermediate member 333M may be positioned between the cover member 1313 of the first vibration generator 333A and the first surface of the second vibration generator 333B. For example, the intermediate member 333M may be connected (or coupled) to the cover member 1313 of the first vibration generator 333A and connected (or coupled) to the adhesive layer 1315 and the first electrode portion 1311b of the second vibration generator 333B. Thus, the second vibration generator 333B may be connected (or coupled) to the first vibration generator 333A via the intermediate member 333M. For example, the intermediate member 333M may be an adhesive member or a connecting member, but the embodiments herein are not limited thereto.

[0219] The first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may be stacked or arranged on top of each other so as to be displaced (or driven or vibrated) in the same direction to maximize the amplitude displacement of the vibrating member 331. For example, the first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may be substantially the same size as each other, but the embodiments herein are not limited thereto. For example, the first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 may be substantially the same size as each other within a manufacturing tolerance range. This allows the first vibration generator 335A and the second vibration generator 335B of the second vibration device 335 to increase or maximize the amplitude displacement of the vibrating member 331.

[0220] The first vibration generator 335A of the second vibration device 335 is substantially the same as the vibration generator 1310 of the second vibration device 335 described with reference to Figures 3 to 7, so a redundant explanation of it will be omitted.

[0221] The second vibration generator 335B of the second vibration device 335 may be connected (or coupled) or attached to the cover member 1313 of the first vibration generator 333A.

[0222] In the second vibration device 335, the second vibration generator 335B may include a vibration generating section 1311 comprising a vibration section 1311a, a first electrode section 1311b, and a second electrode section 1311c. The second vibration generator 335B may further include a cover member 1313. The cover member 1313 may be connected (or bonded) to the second surface of the vibration generating section 1311 via an adhesive layer 1315. The vibration generating section 1311, cover member 1313, and adhesive layer 1315 of the second vibration generator 335B are substantially identical to the vibration generating section 1311, cover member 1313, and adhesive layer 1315 of the second vibration device 335 described with reference to Figures 3 to 7, so a redundant explanation of them will be omitted.

[0223] The second vibration device 335 may further include an intermediate member 335M. In the second vibration device 335, the intermediate member 335M may be positioned between or connected to the first vibration generator 335A and the second vibration generator 335B. For example, the intermediate member 335M may be positioned between the cover member 1313 of the first vibration generator 335A and the first surface of the second vibration generator 335B. For example, the intermediate member 335M may be connected (or coupled) to the cover member 1313 of the first vibration generator 335A and connected (or coupled) to the adhesive layer 1315 and the first electrode portion 1311b of the second vibration generator 335B. Thus, the second vibration generator 335B may be connected (or coupled) to the first vibration generator 335A via the intermediate member 333M. For example, the intermediate member 335M may be an adhesive member or a connecting member, but the embodiments herein are not limited thereto.

[0224] Intermediate members 333M and 335M according to one embodiment of this specification may be made of a material including an adhesive layer that has excellent adhesion or bonding strength to the first vibration generators 333A and 335A and the second vibration generators 333B and 335B, respectively. For example, intermediate members 333M and 335M may include foam pads, double-sided tape, double-sided foam tape, double-sided pads, double-sided foam pads, or adhesives, but the embodiments of this specification are not limited thereto. For example, the adhesive layer of intermediate members 333M and 335M may include epoxy, acrylic, silicone, or urethane, but the embodiments of this specification are not limited thereto. For example, the adhesive layer of intermediate members 333M and 335M may include a urethane-based substance (or material) having relatively flexible properties. This minimizes vibration losses due to displacement interference between the first vibration generators 333A, 335A and the second vibration generators 333B, 335B, or allows each of the first vibration generators 333A, 335A and the second vibration generators 333B, 335B to be freely displaced (or vibrate or driven).

[0225] According to other embodiments of this specification, either the first vibrator 333 or the second vibrator 335 may be omitted, provided that each of the first vibrator 333 and the second vibrator 335 includes a plurality of vibration generators 333A, 333B, 335A, and 335B, but the embodiments of this specification are not limited thereto.

[0226] Other embodiments of the acoustic device 30 described herein can have the same effects as the acoustic device 30 described with reference to Figures 3 to 9. Furthermore, the acoustic device 30 according to other embodiments of the specification can maximize or increase the displacement (or bending force or driving force) or amplitude displacement of the vibrating member 331 by including a plurality of vibration generators 333A, 333B, 335A, 335B stacked (or overlapping or superimposed) so that the vibrating devices 333, 335 vibrate (or displace or drive) each other in the same direction, thereby improving the low-frequency characteristics of the sound generated by the vibration of the vibrating member 331.

[0227] Figure 12 shows an acoustic device according to another embodiment of this specification.

[0228] Referring to Figure 12, another embodiment of the acoustic device 30 according to this specification may include an enclosure 310, an acoustic generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 8, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0229] Other embodiments of the acoustic device 30 according to this specification may further include a connecting member 350. The description of the connecting member 350 is substantially the same as that described with reference to Figure 8, and therefore can be omitted or simplified here.

[0230] In other embodiments of this specification, the connecting member 350 may be positioned on the rear of the enclosure 310. The connecting member 350 may be positioned between the enclosure 310 and the vehicle interior material 130. For example, the connecting member 350 may be positioned between the first enclosure 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected to or coupled with the enclosure 310 by the connecting member 350. For example, the connecting member 350 may be connected to or coupled to the rear of the first enclosure 311 by the connecting member 350. As a result, the acoustic device 30 or the enclosure 310 may be connected to or coupled with the vehicle interior material 130 by the connecting member 350.

[0231] According to one embodiment of this specification, the connecting member 350 is made of a relatively hard material (or hard material), so that vibrations of the first enclosure 311 caused by vibrations of the vibrator can be transmitted to the vehicle interior material 130. As a result, the vehicle interior material 130 can vibrate due to the vibrations transmitted through the connecting member 350 and generate sound. For example, if the connecting member 350 is made of a relatively hard material (or hard material), the vehicle interior material 130 connected to the connecting member 350 can become a diaphragm for sound generation (or output). For example, if the connecting member 350 is made of a relatively hard material (or hard material), vibrations of the first enclosure 311 can be transmitted to the vehicle interior material 130 more efficiently.

[0232] According to one embodiment of this specification, the connecting member 350 may further include a first hole 350o (or hole). For example, the connecting member 350 may further include a first hole 350o connected to an opening 310o in the enclosure 310. The first hole 350o may be positioned corresponding to (or superimposed on) the opening 310o. The first hole 350o may have the same shape as the opening 310o, but the embodiments of this specification are not limited thereto. For example, the first hole 350o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiments of this specification are not limited thereto.

[0233] According to one embodiment of this specification, the vehicle interior material 130 may further include a second hole 137 (or hole, opening hole, or through hole). The second hole 137 (or hole) may include one or more holes. For example, a single second hole 137 may correspond to (or overlap with) the opening 310o and the first hole 350o. For example, a single second hole 137 may have the same or larger size as the opening 310o and the same size as the first hole 350o. For example, multiple holes may be arranged at the same or different intervals. The second hole 137 may be arranged corresponding to (or overlapping with) the opening 310o and / or the first hole 350o. For example, the second hole 137 (or hole) may be housed within the opening 310o and / or the first hole 350o. For example, the second hole 137 may be a through hole, opening, slit, slot, acoustic hole, acoustic emission hole, or acoustic output hole, but the embodiments herein are not limited thereto.

[0234] According to one embodiment of this specification, the sound produced by the vibration of the sound generating module 330 can be output into the vehicle's interior space through the opening 310o, the first hole 350o, and the second hole 137. The sound device 30 or enclosure 310 can then vibrate the vehicle's interior material 130 via the connecting member 350, thereby outputting the sound produced by the vibration of the vehicle's interior material 130 into the vehicle's interior space.

[0235] Figure 13 shows an acoustic device according to another embodiment of this specification.

[0236] Referring to Figure 13, another embodiment of the acoustic device 30 according to this specification may include an enclosure 310, an acoustic generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3, 4, and 9, and therefore the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0237] Other embodiments of the acoustic device 30 according to this specification may further include a flexible member 360. The description of the flexible member 360 is substantially the same as that described with reference to Figure 6, and therefore can be omitted or simplified here.

[0238] A flexible member 360 according to other embodiments of this specification may be positioned on the rear of the enclosure 310. The flexible member 360 may be positioned between the enclosure 310 and the vehicle interior material 130. For example, the flexible member 360 may be positioned between the first enclosure 311 and the vehicle interior material 130. For example, the vehicle interior material 130 may be connected to or coupled with the enclosure 310 by the flexible member 360. For example, the vehicle interior material 130 may be connected to or coupled to the rear of the first enclosure 311 by the flexible member 360. As a result, the acoustic device 30 or the enclosure 310 may be connected to or coupled with the vehicle interior material 130 by the flexible member 360.

[0239] Other embodiments of the vehicle interior material 130 according to this specification may include one or more curved portions (or one or more bent portions) 136. The flexible member 360 may be configured to correspond to one or more curved portions 136. The flexible member 360 may be in contact with one or more curved portions 136. For example, the vehicle interior material 130 may include one or more curved portions 136 in contact with the flexible member 360. The flexible member 360 may be in contact with the entire vibration region of the vehicle interior material 130. The flexible member 360 may be in direct contact with the entire vibration region of the vehicle interior material 130. The flexible member 360 may be in direct contact with one or more curved portions 136. For example, the flexible member 360 may be in direct contact with at least one or more curved portions 136 without an intermediary or intermediate member.

[0240] According to one embodiment of this specification, the flexible member 360 can be in direct contact with one or more curved surfaces 136 without the need for a separate adhesive member or an intermediate member (or mediator). For example, the flexible member 360 can be in direct contact with the entire vibration region of the vehicle interior material 130 without the need for a separate adhesive member or an intermediate member (or mediator). The vibrations generated by the sound generation module 330 can be transmitted by the flexible member 360 to the entire vibration region of the vehicle interior material 130, including one or more curved surfaces 136 and flat surfaces. As a result, the vibrations of the entire vibration region of the vehicle interior material 130 generate (or output) sound, which can improve the acoustic characteristics and / or sound pressure characteristics of the frequency range, including the low-frequency range, generated by the sound generation module 330.

[0241] According to one embodiment of this specification, the flexible member 360 may be made of a relatively soft material for connecting (or bonding) with the vehicle interior material 130, which includes one or more curved portions 136 and flat portions. For example, when one or more curved portions 136 are included in the vibration region of the vehicle interior material 130, the flexible member 360 may be made of a relatively soft material. For example, the flexible member 360 according to another embodiment of this specification, which is made of a soft material, may be a sponge member, a cushion member, or a soft member.

[0242] According to one embodiment of this specification, the flexible member 360 may consist of a single-sided tape, single-sided sponge tape, single-sided porous tape, single-sided cushion tape, double-sided tape, double-sided sponge tape, double-sided porous tape, or double-sided cushion tape, etc., made of a relatively soft material (or soft material), but the embodiments of this specification are not limited thereto. The flexible member 360 may be filled into one or more curved portions 136 of the vehicle interior material 130, or may be configured to cover or completely cover one or more curved portions 136 of the vehicle interior material 130.

[0243] According to one embodiment of this specification, the flexible member 360 may be placed between the enclosure 310 and one or more curved surfaces 136 of the vehicle interior material 130. The flexible member 360 may be placed between the first enclosure 311 and one or more curved surfaces 136 of the vehicle interior material 130. For example, the acoustic device 30 or the first enclosure 311 may be connected or joined to one or more curved surfaces 136 of the vehicle interior material 130 by the flexible member 360. This allows the flexible member 360 to absorb external impacts by filling or covering one or more curved surfaces 136 of the vehicle interior material 130, thereby protecting the acoustic device 30.

[0244] According to one embodiment of this specification, the flexible member 360 may further include a first hole 360o (or hole). For example, the flexible member 360 may further include a first hole 360o connected to an opening 310o in the sound generating module 330. The first hole 360o may be positioned corresponding to the opening 310o. The first hole 360o may have the same shape as the opening 310o, but the embodiments of this specification are not limited thereto. For example, the first hole 360o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiments of this specification are not limited thereto.

[0245] According to one embodiment of this specification, the vehicle interior material 130 may further include a second hole 137 (or hole). The second hole 137 (or hole) may include one or more holes. For example, a single second hole 137 may correspond to (or overlap) the opening 310o and the first hole 350o. For example, a single second hole 137 may have the same or larger size as the opening 310o and the same size as the first hole 350o. The second hole 137 may be positioned corresponding to (or overlapping) the opening 310o and / or the first hole 350o. For example, the second hole 137 (or hole) may be housed within the opening 310o and / or the first hole 350o. For example, the second hole 137 may be an opening, an opening hole, a slit, or a slot, but the embodiments of this specification are not limited thereto.

[0246] According to one embodiment of this specification, the sound generated by the vibration of the sound generating module 330 can be output into the vehicle's interior space through the opening 310o, the first hole 360o, and the second hole 137. The sound device 30 or enclosure 310 can then vibrate one or more curved surfaces 136 in the vehicle's interior material 130 using the flexible member 360, thereby outputting the sound generated by the vibration of the vehicle's interior material 130 into the vehicle's interior space. Furthermore, since external impacts applied to the sound device 30 or enclosure 310 can be absorbed by the flexible member 360, the sound device 30 can be protected from external impacts.

[0247] Figure 14 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 15 is an exploded perspective view of the acoustic device shown in Figure 12 according to another embodiment of this specification. This diagram shows a method of connecting the acoustic device and the coupling part according to another embodiment of this specification.

[0248] Referring to Figures 14 and 15, the acoustic device 30 according to other embodiments of this specification may include an enclosure 310, an acoustic generating module 330, and a coupling member 320. The descriptions of the enclosure 310, the acoustic generating module 330, and the coupling member 320 are substantially the same as those described with reference to Figures 3 to 13, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0249] When connecting the sound device 30 to the vehicle interior material 130, the sound device 30 and the vehicle interior material 130 can be connected by adhesive. When the sound device 30 is connected to the vehicle interior material 130 by adhesive, there is a problem that it is difficult to rework or replace the sound device 30 in the event of a defect or malfunction, and that the sound device 30 may be damaged during rework or replacement. For this reason, the inventors of this specification have conducted various studies and experiments to make it easy to rework or replace the sound device 30 when connected to the vehicle interior material 130, and to reduce damage to the sound device 30. Through various studies and experiments, they have invented a sound device that is easy to rework or replace when connected to the vehicle interior material 130, and does not break when the sound device 30 is reworked or replaced. This will be explained below.

[0250] Other embodiments of the acoustic device 30 according to this specification may further include a coupling portion 500.

[0251] The coupling portion 500 may be located between the vehicle interior material 130 and the sound generating module 330. The coupling portion 500 may be located on the rear of the enclosure 310. The coupling portion 500 may be located between the rear of the enclosure 310 and the vehicle interior material 130. For example, the coupling portion 500 may be configured to connect the enclosure 310 and the vehicle interior material 130 (or the object to be mounted). The coupling portion 500 may be configured to connect the enclosure 310 to the vehicle interior material 130 to which the enclosure 310 is mounted. For example, the coupling portion 500 may be configured to connect the enclosure 310 and the vehicle interior material 130 to which the first enclosure 311 is mounted. For example, the coupling portion 500 may be configured to connect or join the enclosure 310 and the vehicle interior material 130. For example, the acoustic device 30 or enclosure 310 is connected to or can be connected to the vehicle interior material 130 by the coupling 500. Sound produced by the vibration of the sound generating module 330 can be output into the vehicle's interior space via the coupling 500. For example, the coupling 500 may be a coupling means, a coupling structure, an acoustic guide member, a waveguide, or an acoustic emission member, but the embodiments herein are not limited thereto.

[0252] According to one embodiment of this specification, the coupling 500 may be housed in or inserted into the enclosure 310. The coupling 500 may be housed in or inserted into the first enclosure 311. The coupling 500 may be housed in or inserted into the hole 137 of the vehicle interior material 130. The coupling 500 may be housed in or inserted into the opening 310o and the hole 137 of the first enclosure 311. For example, the hole 137 (or opening hole) of the vehicle interior material 130 may be connected to the opening 310o. For example, the coupling 500 may be configured to be coupled to the first enclosure 311 via the hole 137 and the opening 310o of the vehicle interior material 130.

[0253] According to one embodiment of this specification, the enclosure 310 encloses both sides (or vertically with respect to the lateral direction) of the sound generation module 330, so that the internal space 313 of the enclosure 310 can be minimized. For example, the first enclosure 311 and the second enclosure 312 enclose both sides (or vertically with respect to the lateral direction) of the sound generation module 330, so that the first internal space 313a and the second internal space 313b of the enclosure 310 can be minimized. As a result, the thickness of the sound generation module 330 can be reduced, and therefore the thickness of the sound device 30 can be reduced.

[0254] The coupling portion 500 according to one embodiment of this specification may further include a hollow portion 501. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310. For example, the hollow portion 501 may be connected to the internal space 313 via an opening 310o of the enclosure 310. For example, the hollow portion 501 may be connected to a first space 313a of the internal space 313 of the enclosure 310 via an opening 310o of the enclosure 310. For example, the hollow portion 501 may be connected to a first space 313a via an opening 310o of a first enclosure 311. Sounds produced by vibrations of the sound generating module 330 may be output into the interior space of the vehicle by the hollow portion 501. For example, the hollow portion 501 may be an acoustic outlet or an acoustic output port, but the embodiments of this specification are not limited thereto.

[0255] The coupling portion 500 according to one embodiment of this specification may further include a hollow member 502 and a latch member 503.

[0256] The hollow member 502 may include a hollow portion 501. The hollow portion 501 may be connected to or joined to a hole (or first hole) 137 in the vehicle interior material 130. The hollow member 502 may be connected to or joined to the hole 137 in the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the hollow member 502 may be connected to or joined to the hole 137 in the vehicle interior material 130 and the opening 310o of the first enclosure 311. For example, the hollow member 502 may be housed in or inserted into the opening 310o of the first enclosure 311 via the hole 137 in the vehicle interior material 130. For example, the connecting portion 500 may be connected to or joined to the enclosure 310 or the first enclosure 311 via the hole 137 in the vehicle interior material 130.

[0257] The latch member 503 may be configured to connect to or be coupled to the vehicle interior material 130 (or the object to be mounted). For example, the latch member 503 may be configured to connect to or be coupled to the vehicle interior material 130 to which the enclosure 310 is mounted. The latch member 503 may be connected to or be coupled around the hole 137 of the vehicle interior material 130. The latch member 503 may be connected to or be coupled to the back (or interior surface) 130s of the vehicle interior material 130 around the hole 137 (or through hole) of the vehicle interior material 130. For example, the latch member 503 may be a fastener, but the embodiments herein are not limited thereto.

[0258] The coupling portion 500 according to the embodiments of this specification may further include a hook member 504.

[0259] The first enclosure 311 may include an internal surface 311i and an external surface. The internal surface 311i of the first enclosure 311 may face the vibrating member 331. The external surface of the first enclosure 311 may be the surface opposite to the internal surface 311i.

[0260] The hook member 504 can be connected to the first side of the hollow member 502. The hook member 504 can be coupled to the inner surface 311i of the enclosure 310 facing the vibrating member 331 in the sound generating module 330 or sound device 30. The hook member 504 can be coupled to the inner surface 311i or inclined surface 311s of the enclosure 310 in the internal space 313 of the enclosure 310. The hook member 504 can be housed in or inserted into the opening 310o of the first enclosure 311. For example, the hook member 504 can be housed in or inserted into the opening 310o of the first enclosure 311 via the vehicle interior material 130. For example, the latch member 503 can be connected to the second side of the hollow member 502. The latch member 503 can be coupled to the back (or interior surface) 130s of the vehicle interior material 130 exposed to the interior space of the vehicle. For example, the latch member 503 can be coupled to one surface (or interior surface or back surface) 130s of the vehicle interior material 130 that is exposed to the interior space of the vehicle.

[0261] The enclosure 310 or the first enclosure 311 may further include a home section 311g. For example, the home section 311g may be formed on an internal surface 311i in the internal space 313. For example, the home section 311g may be formed around an opening 310o on the internal surface 311i in the internal space 313.

[0262] The hook member 504 can include an inclined surface 504s. For example, the hook member 504 can include the inclined surface 504s depending on the shape of the latch member 503. The inclined surface 504s can be configured to correspond to the shape of the latch member 503. The hook member 504 can be configured to correspond to the home portion 311g of the enclosure 310 or the first enclosure 311. For example, the hook member 504 can be connected or coupled to the home portion 311g of the enclosure 310 or the first enclosure 311. For example, the hook member 504 can be housed (or inserted) into the opening 310o via the vehicle interior material 130 and connected or coupled to the home portion 311g. For example, the hook member 504 can be housed (or inserted) into the opening 310o via the vehicle interior material 130 and connected or coupled to the home portion 311g by a hook coupling method. For example, the home portion 311g and the inclined surface 504s can be the fastening guide surfaces of the enclosure 310 and the coupling portion 500. For example, the hook member 504 can be a protrusion or a projecting portion, but the embodiments of the present specification are not limited thereto. For example, the home portion 311g can be a recess or the like, but the embodiments of the present specification are not limited thereto.

[0263] Referring to Figure 13, the coupling portion 500 is connected to or can be connected to the sound device 30 or enclosure 310 via the hole 137 in the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the coupling portion 500 may be housed in or inserted into the opening 310o of the first enclosure 311 via the hole 137 in the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be connected to or can be connected to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or housed) in the opening 310o of the first enclosure 311 and connected to or can be connected to the home portion 311g of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 is inserted (or housed) into the opening 310o of the first enclosure 311, thereby being pushed (or compressed) towards the center (or inside) of the hollow portion 501 by elastic force, and then elastically restored to its original position on the home portion 311g of the first enclosure 311 by elastic restoring force, thereby connecting to or being connected to the opening 310o of the first enclosure 311. For example, the inclined surface 504s of the hook member 504 can facilitate the insertion of the coupling portion 500 and the compression of the hook member 504 when the coupling portion 500 is inserted into the opening 310o of the first enclosure 311. For example, the hook member 504 can be connected to or be connected to the home portion 311g of the first enclosure 311. For example, the hook member 504 can be connected to the home portion 311g of the first enclosure 311 by a hook coupling method.

[0264] According to an embodiment of the present specification, since the acoustic device 30 is connected or can be coupled to the vehicle interior material 130 by the coupling part 500, rework or replacement of the acoustic device 30 connected to the vehicle interior material 130 is easy, and damage to the acoustic device 30 and / or the sound generation module 330 can be prevented during rework or replacement. According to an embodiment of the present specification, by configuring the coupling part 500, the acoustic device 30 can be easily attached or mounted in a narrow area (or space) between the vehicle interior material 130 and the vehicle structure. According to an embodiment of the present specification, since the acoustic device 30 is coupled or mounted to the vehicle interior material 130 by the coupling part 500, no rattling sound (or vibration sound) is generated between the acoustic device 30 and the vehicle interior material 130, so the acoustic characteristics and / or sound pressure characteristics of the acoustic device 30 can be improved.

[0265] As shown in FIG. 16, the acoustic device 30 according to another embodiment of the present specification may further include a connecting member 350.

[0266] Referring to FIG. 16, the connecting member 350 can be between the vehicle interior material 130 and the enclosure 310. The connecting member 350 can be between the vehicle interior material 130 and the first enclosure 311. The connecting member 350 can include a second hole (or hole) 350o. For example, the second hole 350o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the second hole 350o can be between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. The second hole 350o can be connected to the opening 310o of the enclosure 310. For example, the second hole 350o can be connected to the opening 310o of the first enclosure 311. The second hole 350o can be arranged corresponding to the opening 310o.

[0267] The coupling portion 500 can be connected to or coupled to the sound device 30 or enclosure 310 via the first hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hollow member 502 can be housed in the opening 310o via the first hole 137 and the second hole (or connecting hole 350o) of the vehicle interior material 130. For example, the coupling portion 500 can be housed in or inserted into the opening 310o of the first enclosure 311 via the first hole 137 of the vehicle interior material 130 and the second hole 350o of the connecting member 350 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 can be connected to or coupled to the opening 310o of the first enclosure 311. For example, when the hollow member 502 of the coupling portion 500 is inserted (or housed) in the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling portion 500 is pushed (or compressed) towards the center (or inside) of the hollow portion 501 by elastic force, and then elastically restored to the home portion 311g of the first enclosure 311 by elastic restoring force, thereby connecting to or being connected to the opening 310o of the first enclosure 311. For example, the hook member 504 may be connected to the home portion 311g of the first enclosure 311 by a hook coupling method.

[0268] Other embodiments of the acoustic device 30 according to this specification may further include a flexible member 360 instead of the connecting member 350 shown in Figure 16.

[0269] Referring to Figure 16, the flexible member 360 can be located between the vehicle interior material 130 and the enclosure 310. The flexible member 360 can be located between the vehicle interior material 130 and the first enclosure 311. The flexible member 360 can include a second hole (or hole or third hole) 360o. For example, the second hole 360o can be located between the first hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the second hole 360o can be located between the first hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. The second hole 360o can be connected to the opening 310o of the enclosure 310. For example, the second hole 360o can be connected to the opening 310o of the first enclosure 311. The second hole 360o can be positioned corresponding to the opening 310o.

[0270] The coupling portion 500 can be connected to or coupled to the sound device 30 or enclosure 310 via the first hole 137 of the vehicle interior material 130 (in the direction of the arrow) in the interior space of the vehicle. For example, the hollow member 502 can be housed in the opening 310o via the first hole 137 and the second hole (or connecting hole 360o) of the vehicle interior material 130. For example, the coupling portion 500 can be housed in or inserted into the opening 310o of the first enclosure 311 via the first hole 137 of the vehicle interior material 130 and the second hole 360o of the flexible member 360 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 can be connected to or coupled to the opening 310o of the first enclosure 311. For example, when the hollow member 502 of the coupling portion 500 is inserted (or housed) in the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling portion 500 is pushed (or compressed) towards the center (or inside) of the hollow portion 501 by elastic force, and then elastically restored to the home portion 311g of the first enclosure 311 by elastic restoring force, thereby connecting to or being connected to the opening 310o of the first enclosure 311. For example, the hook member 504 may be connected to the home portion 311g of the first enclosure 311 by a hook coupling method.

[0271] Other embodiments of the acoustic device 30 according to this specification may further include a connecting member 350 and a flexible member 360, as shown in Figure 17.

[0272] Referring to Figure 17, the coupling portion 500 may be connected to or coupled to the sound device 30 via the first hole 137 of the vehicle interior material 130, the second hole 350o of the connecting member, the third hole 360o of the flexible member 360, and the opening 310o of the enclosure 310 (in the direction of the arrow). For example, the hollow member 502 may be housed in the opening 310o via the first hole 137 of the vehicle interior material 130, the second hole (or connecting hole) 350o, and the third hole 360o of the flexible member 360. For example, the coupling portion 500 may be connected to or coupled to the enclosure 310 via the first hole 137 of the vehicle interior material 130, the third hole 360o of the flexible member 360, and the opening 310o of the enclosure 310. For example, the connecting portion 500 can be connected to or coupled to the sound device 30 via the first hole 137 of the vehicle interior material 130, the second hole 350o of the connecting member, the third hole 360o of the flexible member 360, and the opening 310o of the first enclosure 311 (in the direction of the arrow).

[0273] The method of connecting the vehicle interior material 130 and the sound device 30 is described with reference to Figure 16, and since both the connecting member 350 and the flexible member 360 are constructed in this manner, a further explanation will be omitted.

[0274] Figure 18 shows an acoustic device according to another embodiment of this specification. Figure 19 shows an acoustic device according to another embodiment of this specification.

[0275] Referring to Figures 18 and 19, other embodiments of the acoustic device 30 according to this specification may include an enclosure 310 and an acoustic generation module 330. The descriptions of the enclosure 310 and the acoustic generation module 330 are substantially the same as those described with reference to Figures 3 to 12, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0276] Other embodiments of the acoustic device 30 according to this specification may include a coupling portion 500 connected to the vehicle interior material 130. The description of the coupling portion 500 is substantially the same as that described with reference to Figures 14 to 17, so the same reference numerals are used, and redundant descriptions can be omitted or simplified.

[0277] Referring to Figure 18, the enclosure 310 according to other embodiments of this specification may include an opening 310o. For example, the first enclosure 311 may include an opening 310o. The opening 310o of enclosure 310 or the first enclosure 311 may include two (or a pair of) opening lines (line holes) that intersect each other. The opening 310o of enclosure 310 or the first enclosure 311 may include a cross (+) shape. The vehicle interior material 130 may include a hole 137. The hole 137 may be positioned corresponding to the opening 310o. For example, the hole 137 may be positioned corresponding to the shape of the opening 310o. For example, the shape of the hole 137 may be the same as the shape of the opening 310o, but the embodiments of this specification are not limited thereto. For example, the shape of the hole 137 may be a cross (+) shape.

[0278] Other embodiments of the coupling 500 described herein may include a hollow portion 501. The hollow portion 501 may be positioned corresponding to the opening 310o. For example, the hollow portion 501 may be positioned corresponding to the shape of the opening 310o. The shape of the hollow portion 501 may be the same as the shape of the opening 310o, but the embodiments described herein are not limited thereto. For example, the shape of the hollow portion 501 may be a cross (+) shape. The hook member 504 may vary depending on the shape of the hollow portion 501. For example, the hook member 504 may include multiple hook members or fasteners depending on the cross (+) shape of the hollow portion 501.

[0279] Referring to Figure 19, the opening 310o of the enclosure 310 or the first enclosure 311 according to other embodiments of this specification may include three intersecting opening lines (line holes). The opening 310o of the enclosure 310 or the first enclosure 311 may include an asterisk shape. The vehicle interior material 130 may include a hole 137. The hole 137 may be positioned in correspondence with the opening 310o. For example, the hole 137 may be positioned in correspondence with the shape of the opening 310o. For example, the shape of the hole 137 may be the same as the shape of the opening 310o, but the embodiments of this specification are not limited thereto. For example, the shape of the hole 137 may be an asterisk shape.

[0280] Other embodiments of this specification may be positioned in correspondence with the opening 310o. For example, the hollow portion 501 may be positioned in correspondence with the shape of the opening 310o. The shape of the hollow portion 501 may be the same as the shape of the opening 310o, but the embodiments of this specification are not limited thereto. For example, the shape of the hollow portion 501 may be star-shaped (*). The hook member 504 may vary depending on the shape of the hollow portion 501. For example, the hook member 504 may include multiple hook members or fasteners depending on the star-shaped (*) shape of the hollow portion 501.

[0281] According to one embodiment of this specification, since the opening 310o is configured in a cross (+) shape or a star (*) shape, the amount of sound emitted from the sound device 30 may be increased and the aesthetic appearance may be improved. Furthermore, since the hole 137 in the vehicle interior material 130 is covered by the hook member 504, the inflow of dust or foreign matter from the outside is minimized, thereby protecting the sound generating module 330 or the sound device 30.

[0282] In Figures 18 and 19, the acoustic device 30 according to other embodiments of this specification may further include one or more of the connecting members 350 and flexible members 360 described with reference to Figures 14 to 16 or Figure 17. For example, the shape of the hole 350o of the connecting member 350 may be positioned to correspond to the shape of the opening 310o of the enclosure 310. For example, the shape of the hole 350o of the connecting member 350 may be a cross (+) shape or a star (*) shape. For example, the shape of the hole 360o of the flexible member 360 may be positioned to correspond to the shape of the opening 310o of the enclosure 310. For example, the shape of the hole 360o of the flexible member 360 may be a cross (+) shape or a star (*) shape.

[0283] Figure 20 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 21 is a diagram showing a method for connecting the acoustic device shown in Figure 20 and the coupling part according to another embodiment of this specification.

[0284] Referring to Figures 20 and 21, the acoustic device 30 according to other embodiments of this specification may include an enclosure 310 and an acoustic generation module 330. The description of the enclosure 310 and the acoustic generation module 330 is substantially the same as that described with reference to Figures 3 and 13, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0285] According to an embodiment of the present specification, the enclosure 310 can include a protrusion 315. The first enclosure 311 can include the protrusion 315. The protrusion 315 can protrude from the first enclosure 311. The protrusion 315 can protrude from the back surface (or outer surface) 311r of the first enclosure 311. For example, the protrusion 315 can protrude from the enclosure 310 or the first enclosure 311 so as to surround the opening 310o. For example, the protrusion 315 can protrude from the back surface (or outer surface) 311r of the enclosure 310 or the first enclosure 311 so as to surround the opening 310o. Thereby, the protrusion 315 can include a hollow hole (or hole or open hole) 315o that is connected (or overlapped) to the opening 310o. The hollow portion 501 can be accommodated in the hollow hole 315o of the protrusion 315 and can be connected to the internal space 313 via the hollow hole 315o and the opening 310o. The protrusion 315 can be configured to be accommodated in a hole 137 in the vehicle interior material 130. For example, the protrusion 315 can be accommodated or inserted into the hole 137, the hollow hole 315o, and the opening 310o. For example, the hook member 504 can be accommodated or inserted into the opening 310o of the enclosure 310 or the first enclosure 311 via the vehicle interior material 130 (or the object to be attached) and the protrusion 315. The hook member 504 can be connected or coupled to the inner surface 311i of the enclosure 310 or the first enclosure 311. For example, the hook member 504 can be connected or coupled to the home portion 311g of the enclosure 310 in the internal space 313 of the enclosure 310. For example, the hook member 504 can be coupled (or connected) to the home portion 311g of the enclosure 310 by a hook coupling method in the internal space 313 of the enclosure 310.

[0286] According to one embodiment of this specification, the first enclosure 311 may include an internal surface and an external surface 311r. The internal surface of the first enclosure 311 may face the vibrating member 331. The external surface 311r of the first enclosure 311 may be the surface opposite to the internal surface of the first enclosure 311. For example, a projection 315 may project from the external surface 311r of the first enclosure 311. The projection 315 may project from the external surface 311r of the first enclosure 311 to have a hollow hole (or hole or opening hole) 315o connected to (or superimposed on) an opening 310o.

[0287] According to one embodiment of this specification, the sound device 30 may include a coupling portion 500 connected to the vehicle interior material 130. The description of the coupling portion 500 is substantially the same as that described with reference to Figures 14 to 16, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0288] Referring to Figure 20, the joint 500 may include a hollow section 501. The hollow section 501 may be connected to or joined to a projection 315. The projection 315 may surround an opening 310o of the enclosure 310. The projection 315 may surround an opening 310o of the first enclosure 311. The projection 315 may include a hollow hole 315o that corresponds to (is connected to) the opening 310o of the first enclosure 311. For example, the hollow section 501 may be connected to the internal space 313 of the enclosure 310 via the projection 315 and the opening 310o. For example, the hollow section 501 may be connected to the internal space 313 of the enclosure 310 via the hollow hole 315o of the projection 315 and the opening 310o. For example, the coupling portion 500 may be housed in and coupled to the protruding portion 315 and configured to connect to one surface of the vehicle interior material 130 exposed to the interior space. For example, the coupling portion 500 may be connected to the protruding portion 315 and connected to the internal space 313 of the enclosure 310 via the opening 310o. For example, the coupling portion 500 may be connected to or coupled to the enclosure 310 in the internal space 313 of the enclosure 310 via the protruding portion 315 and the opening 310o.

[0289] According to one embodiment of this specification, the coupling portion 500 may include a hollow member 502 and a latch member 503.

[0290] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted into (or housed in) the projection 315. The hollow member 502 may be inserted into (or housed in) the hollow hole 315o of the projection 315. The hollow member 502 may be inserted into (or housed in) the projection 315 and connected to or joined to the opening 310o of the enclosure 310 or the first enclosure 311.

[0291] The latch member 503 can be connected to the hollow member 502. The latch member 503 can be configured to be connected to the vehicle interior material 130 (or the object to be mounted). For example, the latch member 503 can be configured to be connected to the vehicle interior material 130 (or the object to be mounted) to which the enclosure 310 is mounted. For example, the latch member 503 can be configured to be connected to the vehicle interior material 130 (or the object to be mounted) to which the first enclosure 311 is mounted.

[0292] According to one embodiment of this specification, the vehicle interior material 130 may include a first surface and a second surface different from (or opposite to) the first surface. The first surface may be the surface facing the enclosure 310. The hole 137 may be configured on the first surface and the second surface. For example, the hole 137 may be configured to penetrate the first surface and the second surface. For example, the latch member 503 may be configured to be coupled to the second surface (or interior surface or back surface) 130s of the vehicle interior material 130 (or the object to be fitted) by penetrating (or passing through) the hole 137.

[0293] According to one embodiment of this specification, the connecting portion 500 may include a hook member 504.

[0294] The hook member 504 can be housed in or inserted into the opening 310o of the first enclosure 311 via the vehicle interior material 130 (or the object to be attached) and the protruding portion 315. The hook member 504 can be connected to or coupled to the inner surface 311i of the first enclosure 311. The hook member 504 can be connected to or coupled to the inner surface 311i of the enclosure 310 in the internal space 313 of the enclosure 310. For example, the hook member 504 can be connected to or coupled to the inner surface 311i of the first enclosure 311 facing the vibrating member 331 in the sound generating module 330. For example, the hook member 504 can be connected to or coupled to the home portion 311g of the first enclosure 311. For example, the hook member 504 can be connected to or coupled to the home portion 311g of the first enclosure 311 by a hook coupling method.

[0295] Referring to Figures 14 and 20, the hook member 504 may be connected to the first side of the hollow member 502. The hook member 504 may be connected to the inner surface 311i or home portion 311g of the enclosure 310 facing the vibrating member 331 in the sound generating module 330. The hook member 504 may be connected to the inner surface 311i or home portion 311g of the enclosure 310 in the internal space 313 of the enclosure 310. For example, the latch member 503 may be connected to the second side of the hollow member 502. The latch member 503 may be connected to one surface (or interior surface or back surface) 130s of the vehicle interior material 130 exposed to the interior space.

[0296] Referring to Figure 20, the coupling portion 500 is connected to or can be coupled to the protruding portion 315 of the enclosure 310 via the first hole 137 of the vehicle interior material 130 (in the direction of the arrow). For example, the coupling portion 500 is connected to or can be coupled to the protruding portion 315 of the first enclosure 311 via the first hole 137.

[0297] Referring to Figure 21, the hook member 504 of the coupling portion 500 can be connected to or coupled to the projection 315 of the first enclosure 311. For example, when the hollow member 502 of the coupling portion 500 is inserted (or housed) in the opening 310o of the first enclosure 311 (in the direction of the vertical arrow), the hook member 504 of the coupling portion 500 is pushed (or compressed) (in the direction of the horizontal arrow) towards the center (or inside) (dotted line direction) of the hollow portion 501 by elastic force, and then elastically restored to the home portion 311g of the first enclosure 311 by elastic restoring force, and can be connected to or coupled to the opening 310o of the first enclosure 311. For example, the inclined surface 504s of the hook member 504 can facilitate the insertion of the coupling portion 500 and the compression of the hook member 504 when the coupling portion 500 is inserted (or housed) in the opening 310o of the first enclosure 311. For example, the hook member 504 may be connected to or coupled to the home portion 311g of the first enclosure 311.

[0298] According to one embodiment of this specification, the sound device 30 is connected to or can be connected to the vehicle interior material 130 by a coupling portion 500. According to one embodiment of this specification, since the enclosure 310 includes a protrusion 315, the coupling portion 500 can be easily connected to or connected to the protrusion 315, thereby simplifying the connection or coupling process between the vehicle interior material 130 and the sound device 30.

[0299] Other embodiments of the acoustic device 30 according to this specification may further include one or more of the connecting members 350 and flexible members 360 described with reference to Figure 16 or 17. For example, one or more of the second holes 350o of the connecting member 350 and the third holes 360o of the flexible member 360 may be positioned corresponding to the protrusions 315 of the enclosure 310. For example, one or more of the second holes 350o of the connecting member 350 and the third holes 360o of the flexible member 360 may be positioned corresponding to the hollow holes 315o of the protrusions 315.

[0300] Figure 22 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 23 is a diagram showing a method for connecting the acoustic device shown in Figure 22 and the coupling part according to another embodiment of this specification.

[0301] Referring to Figures 22 and 23, other embodiments of the acoustic device 30 according to this specification may include an enclosure 310 and an acoustic generation module 330. The descriptions of the enclosure 310 and the acoustic generation module 330 are substantially the same as those described with reference to Figures 3 to 13, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0302] According to one embodiment of this specification, the enclosure 310 may include a projection 315. The first enclosure 311 may include a projection 315. The projection 315 may project from the rear (or external) surface 311r of the first enclosure 311.

[0303] The first enclosure 311 may include an internal surface and an external surface 311r. The internal surface of the first enclosure 311 may face the vibrating member 331. The external surface 311r of the first enclosure 311 may be the surface opposite to the internal surface of the first enclosure 311. For example, the projection 315 may project from the back (or external surface) 311r of the first enclosure 311. For example, the projection 315 is substantially the same as that described with reference to Figures 20 and 21, so the same reference numeral can be used, and redundant descriptions can be omitted or simplified.

[0304] Other embodiments of the acoustic device 30 according to this specification may include a coupling portion 500 connected to the vehicle interior material 130.

[0305] The joint 500 is connected to or can be joined to the projection 315. This allows the joint 500 and the projection 315 to be constructed integrally (or as a single unit). For example, the joint 500 and the projection 315 may be constructed by double injection molding using different materials, but the embodiments herein are not limited thereto. According to one embodiment herein, the joint 500 and the projection 315 may be constructed as a single part, thereby achieving the effect of unified materialization. The description of the joint 500 is substantially the same as that described with reference to Figures 14 and 15, and therefore the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0306] The coupling portion 500 may include a hollow portion 501. The hollow portion 501 may be connected to or coupled to the projection 315. The projection 315 may surround the opening 310o of the enclosure 310. For example, the projection 315 may surround the opening 310o of the first enclosure 311. The projection 315 may include an opening hole (or hollow hole) 315o that corresponds to (is connected to) the opening 310o of the first enclosure 311. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 via the projection 315o and the opening 315o. For example, the hollow portion 501 may be connected to the internal space 313 of the first enclosure 311 via the projection 315o and the opening 315o. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 via the opening 310o of the enclosure 310. For example, the coupling portion 500 may be configured to be connected to the enclosure 310 via the first hole 137 of the vehicle interior material 130, the opening hole 315o of the protruding portion 315, and the opening 310o of the enclosure 310. The first hole 137 of the vehicle interior material 130 may be connected to the opening 310o.

[0307] According to one embodiment of this specification, the coupling portion 500 may include a hollow member 502 and a latch member 503.

[0308] The hollow member 502 may include a hollow portion 501. The hollow member 502 may be inserted into (or housed in) the projection 315. The hollow member 502 may be inserted into (or housed in) the opening hole 315o of the projection 315. The hollow member 502 may be inserted into (or housed in) the opening hole 315o of the projection 315 and connected to or joined to the opening 310o of the enclosure 310 or the first enclosure 311.

[0309] The latch member 503 can be connected to the hollow member 502. The latch member 503 can be configured to be connected to the vehicle interior material 130. For example, the latch member 503 can be configured to be connected to the vehicle interior material 130 to which the enclosure 310 is mounted. For example, the latch member 503 can be configured to be connected to the vehicle interior material 130 to which the first enclosure 311 is mounted. For example, the latch member 503 can be configured to be connected to the second surface (or interior surface or back surface) 130s of the vehicle interior material 130 via the opening hole 315o of the projection 315.

[0310] The latch member 503 according to one embodiment of this specification may be made of a flexible material, but the embodiments of this specification are not limited thereto. For example, the latch member 503 may be made of rubber, but the embodiments of this specification are not limited thereto.

[0311] According to one embodiment of this specification, the coupling portion 500 and the projection portion 315 are connected to or can be connected to the first hole 137 (in the direction of the arrow) of the vehicle interior material 130 via the hollow portion 501. For example, since the latch member 503 is made of a flexible material, the movement (or folding and unfolding (in the direction of the arrow) of the latch member 503 may connect or connect the sound generating module 330 or sound device 30 to the first hole 137 of the vehicle interior material 130.

[0312] According to one embodiment of this specification, the sound device 30 is connected to or can be connected to the vehicle interior material 130 by a coupling portion 500. According to one embodiment of this specification, the protruding portion 315 of the enclosure 310 and the coupling portion 500 are configured as a single unit, so that the connection or joining process between the vehicle interior material 130 and the sound device 30 can be simplified. According to one embodiment of this specification, the protruding portion 315 and the coupling portion 500 may be configured as a single part, thereby providing the effect of unified materialization.

[0313] Other embodiments of the acoustic device 30 according to this specification may further include one or more of the connecting members 350 and flexible members 360 described with reference to Figure 16 or 17. For example, one or more of the second holes 350o of the connecting member 350 and the third holes 360o of the flexible member 360 may be positioned corresponding to the protrusions 315 of the enclosure 310. For example, one or more of the second holes 350o of the connecting member 350 and the third holes 360o of the flexible member 360 may be positioned corresponding to the hollow holes 315o of the protrusions 315.

[0314] Figure 24 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 25 is an exploded perspective view of the acoustic device shown in Figure 24 according to another embodiment of this specification. Figures 24 and 25 show the acoustic device described with reference to Figures 14 and 16, with additional connecting members. In the description of the acoustic device 30 described with reference to Figures 14 and 15, the remaining description, excluding the description of the connecting members, can be included in the description of the acoustic device 30 shown in Figures 24 and 25, so the same reference numerals are used for the same components, and redundant descriptions are omitted.

[0315] Referring to Figures 24 and 25, the acoustic device 30 according to other embodiments of this specification may further include a connecting member 380. The connecting member 380 may be located between or constitute the vehicle interior material 130 and the acoustic generating module 330. For example, the connecting member 380 may be constituted in the enclosure 310. The connecting member 380 may be constituted between the first enclosure 311 of the enclosure 310 and the vehicle interior material 130. For example, the first enclosure 311 may include an internal surface 311i and an external surface. The internal surface 311i of the first enclosure 311 may face the vibrating member 331. The external surface of the first enclosure 311 may be the surface opposite to the internal surface 311i. For example, the connecting member 380 may be connected to the external surface of the enclosure 310 or the first enclosure 311. The connecting member 380 may be a coupling member, an intermediate member, a buffer member, or a pad member, but the embodiments of this specification are not limited thereto.

[0316] The connecting member 380 may be made of a different material than the first connecting member 321. For example, the connecting member 380 may be made of a material having a different adhesive strength than the first connecting member 321. Because the connecting member 380 is made of a material having a different adhesive strength than the first connecting member 321, the separation or detachment (or rework) of the connecting member 380 from the vehicle interior material 130 may be easier during the separation or detachment (or rework) process of the sound device 30 attached to the vehicle interior material 130. This may make the process of attaching or mounting the sound device 30 to the vehicle interior material 130, or the process of separating or detaching the sound device 30 from the vehicle interior material 130, easier.

[0317] The connecting member 380 may be coupled (or attached) to the back surface of the enclosure 310 and may be in contact (or surface contact) with the first surface 130s1 of the vehicle interior material 130, but the embodiments herein are not limited thereto. For example, if the connecting member 380 is coupled (or attached) to the back surface of the enclosure 310 and simply in contact (or surface contact) with the first surface 130s1 of the vehicle interior material 130, the process of separating and detaching (or reworking) the connecting member 380 from the vehicle interior material 130 may be easy in the process of separating and detaching (or reworking) the sound device 30 from the vehicle interior material 130 without damaging the sound device 30 or the vehicle interior material 130.

[0318] According to one embodiment of this specification, the connecting member 380 can be composed of a single-sided tape, a single-sided adhesive tape, a single-sided foam tape, a single-sided adhesive foam tape, a single-sided pad, a single-sided foam pad, a single-sided adhesive foam pad, a single-sided pad member, a single-sided cushion member, a single-sided cushion pad, or a single-sided cushion tape, but the embodiments of this specification are not limited thereto. For example, the connecting member 380 may be rubber, but the embodiments of this specification are not limited thereto. For example, the rubber may be double synthetic rubber (or ethylene propylene diene M-class rubber), ethylene propylene rubber, or urethane rubber, but the embodiments of this specification are not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of this specification are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of this specification are not limited thereto. For example, the tensile strength of EPDM may be 50 kg / cm². 2 ~200 kg / cm 2 This is possible, but the embodiments herein are not limited thereto. For example, the connecting member 380 may be made of highly elastic rubber, but the embodiments herein are not limited thereto.

[0319] According to one embodiment of this specification, since the connecting member 380 is made of rubber or the like, when vibrations of the enclosure 310 or the first enclosure 311 are transmitted to the vehicle interior material 130, the loss of vibrations can be prevented or minimized, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0320] According to one embodiment of this specification, the connecting member 380 may be made of a different material from the adhesive layer 1315 (see Figure 5) configured in the sound generating module 330. The connecting member 380 may be made of a different material from the coupling member 320 of the sound device 30.

[0321] According to one embodiment of this specification, the connecting member 380 may further include a hole 380o (or a first hole or opening hole). For example, the connecting member 380 may further include a hole 380o that is connected to an opening 310o in the enclosure 310 or the first enclosure 311.

[0322] The hole 380o may be positioned to correspond to (or superimpose) the opening 310o. The hole 380o may have the same shape as the opening 310o, but the embodiments herein are not limited thereto. For example, the hole 380o may have the same shape as the opening 310o and be larger than the opening 310o. This allows the sound produced by the vibration of the sound generating module 330 to be output into the vehicle's interior space (IS) through the opening 310o and the hole 380o. For example, the hole 380o may be an opening, an opening hole, a slit, a slot, a connecting hole, or an intermediate hole, but the embodiments herein are not limited thereto.

[0323] According to one embodiment of this specification, the hole 380o may correspond to (or superimpose) the hole 137 of the vehicle interior material 130. The hole 380o may be located between the hole 137 of the vehicle interior material 130 and the opening 310o of the enclosure 310. For example, the hole 380o may be located between the hole 137 of the vehicle interior material 130 and the opening 310o of the first enclosure 311. The hole 380o may be connected to the opening 310o of the enclosure 310. For example, the hole 380o may be connected to the opening 310o of the first enclosure 311. The hole 380o may be positioned corresponding to the opening 310o. The hole 380o of the connecting member 380 may be the same size as the opening 310o and the hole 137, respectively, or may be larger than the opening 310o and the hole 137, respectively. As a result, the sound produced by the vibration of the sound generation module 330 can be output into the vehicle's interior space through the opening 310o, the hall 380o, and the hall 137.

[0324] The thickness (T1) of the connecting member 380 may differ from the thickness of at least one of the first connecting member 321 and the second connecting member 322. For example, the thickness (T1) of the connecting member 380 may be greater than the thickness of at least one of the first connecting member 321 and the second connecting member 322. The thickness (T1) of the connecting member 380 may be 0.5 mm or more, but the embodiments herein are not limited thereto. For example, the thickness (T1) of the connecting member 380 may be between 0.5 mm and 3 mm, but the embodiments herein are not limited thereto.

[0325] According to other embodiments of this specification, the connecting member 380 has compressive force (or contraction force) and elastic restorative force and can contract or compress due to the connection between the joint 500 and the first enclosure 311. The length (or thickness) of the connecting member 380 may be the same as or shorter than the length (or thickness) of the vehicle interior material 130. For example, the length (or thickness) of the connecting member 380 may be the same as or shorter than the length (or thickness) of the first enclosure 311.

[0326] Prior to compression (or contraction), the connecting member 380 may have an initial thickness (T1') as shown in Figure 25, and may be compressed (or contracted) to the deformation thickness (or compressed thickness) (T1) shown in Figure 24 by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling 500 and the enclosure 310. For example, once the acoustic device 30 is coupled to the vehicle interior material 130 by the coupling 500, or once assembly and / or rework is complete, the thickness of the connecting member 380 can be compressed from the initial thickness (T1') to the compressed thickness (T1), so that vibrations from the enclosure 310 can be efficiently transmitted to the vehicle interior material 130. For example, once the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling 500, the connecting member 380 can be restored from the deformation thickness (T1) to the initial thickness (T1') by elastic restoring force.

[0327] The coupling portion 500 may be connected to or coupled to the sound device 30 via the second hole 137 of the vehicle interior material 130, the hole 380o of the connecting member 380, and the opening 310o of the enclosure 310 (in the direction of the arrow). For example, the coupling portion 500 may be connected to or coupled to the opening 310o of the first enclosure 311 in the interior space of the vehicle via the second hole 137 of the vehicle interior material 130 and the hole 380o of the connecting member 380. According to one embodiment of this specification, the coupling portion 500 may be connected to or coupled to the sound device 30 or enclosure 310 in the interior space of the vehicle via the hole 137 of the vehicle interior material 130 (in the direction of the arrow). For example, the coupling portion 500 may be housed in or inserted into the hole 380o of the connecting member 380 and the opening 310o of the first enclosure 311 via the hole 137 of the vehicle interior material 130 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be connected to or coupled to the opening 310o of the first enclosure 311. For example, the hook member 504 of the coupling portion 500 may be inserted (or housed) in the opening 310o of the first enclosure 311 and connected to or coupled to the home portion 311g of the first enclosure 311 by a hook coupling method.

[0328] Figure 26 shows an acoustic device according to another embodiment of this specification.

[0329] Referring to Figure 26, the vehicle interior material 130 according to other embodiments of this specification may include one or more curved (or bent) portions 136. The connecting member 380 may be configured to correspond to one or more curved portions 136. The connecting member 380 may be in contact with one or more curved portions 136. The connecting member 380 may be in direct contact with one or more curved portions 136. For example, the connecting member 380 may be in direct contact with one or more curved portions 136 without an intermediary or intermediate member.

[0330] The acoustic device 30 or enclosure 310 may be connected to or joined to one or more curved surfaces 136 of the vehicle interior material 130 by a connecting member 380. For example, the connecting member 380 may be positioned between the enclosure 310 and one or more curved surfaces 136 of the vehicle interior material 130. For example, the connecting member 380 may be positioned between the first enclosure 311 and one or more curved surfaces 136 of the vehicle interior material 130. For example, the first enclosure 311 may be connected to or joined to one or more curved surfaces 136 of the vehicle interior material 130 by the connecting member 380.

[0331] The thickness (T1) of the connecting member 380 can differ from the thickness of at least one of the first connecting member 321 and the second connecting member 322. For example, the thickness (T1) of the connecting member 380 may be greater than the thickness of at least one of the first connecting member 321 and the second connecting member 322. The thickness (T1) of the connecting member 380 may be 0.5 mm or more, but the embodiments herein are not limited thereto. For example, the thickness (T1) of the connecting member 380 may be 0.5 mm to 3 mm, but the embodiments herein are not limited thereto. For example, the connecting member 380 may have a thickness (T1) that is compressed by the bonding force between the connecting portion 500 and the first enclosure 311 from its initial thickness (T1') shown in Figure 25. This allows the connecting member 380 to be in surface contact with the vehicle interior material 130, which includes one or more curved portions 136, due to the bonding force between the connecting portion 500 and the first enclosure 311.

[0332] According to one embodiment of this specification, the sound produced by the vibration of the sound generating module 330 can be output into the interior space of the vehicle through the opening 310o, the hole 380o, and the second hole 137. Also according to one embodiment of this specification, the vibration of the enclosure 310 or the first enclosure 311 due to the sound (or sound pressure or sound waves) produced by the vibration of the sound generating module 330 is efficiently transmitted without loss to the vehicle interior material 130 having one or more curved surfaces 136 via the connecting member 380, and the vehicle interior material 130 having one or more curved surfaces 136 vibrates due to the vibration of the enclosure 310 or the first enclosure 311 transmitted via the connecting member 380, thereby outputting sound into the interior space of the vehicle, which can further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0333] Other embodiments of the acoustic device 30 according to this specification may include an enclosure 310 and a connecting member 380. This may further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range, and facilitate the attachment or detachment process of the acoustic generating module 330, which is attached to the vehicle interior material 130 by the connecting member 380 made of rubber material.

[0334] Figure 27 is a diagram showing an acoustic device according to another embodiment of this specification. Figure 28 is an internal view of an acoustic device according to another embodiment of this specification. Figures 27 and 28 show the acoustic device 30 described with reference to Figures 1 to 26, with at least one additional hall. In the description of the acoustic device 30 described with reference to Figures 1 to 26, the remaining description, excluding the description of at least one hall, may be included in the description of the acoustic device 30 shown in Figures 27 and 28, so the same reference numerals are used for the same configuration, and redundant descriptions are omitted.

[0335] Referring to Figures 27 and 28, the acoustic device 30 according to other embodiments of this specification may further include one or more halls 331o.

[0336] One or more holes 331o may be formed in the vibrating member 331. One or more holes 331o may be formed to penetrate the vibrating member 331. For example, one or more holes 331o may be configured to penetrate the vibrating member 331 along the thickness direction (Z) of the vibrating member 331. For example, one or more holes 331o may be formed to penetrate perpendicularly along the thickness direction (Z) of the vibrating member 331.

[0337] An acoustic generation module 330 according to one embodiment of this specification may include a vibrating member 331 containing one or more holes 331o and vibrating devices 333, 335 configured on the vibrating member 331.

[0338] One or more holes 331o may be configured to regulate airflow in the internal space 313 of the enclosure 310. For example, one or more holes 331o can be configured to allow airflow in the internal space 313 of the enclosure 310, which is spatially separated by the vibrating member 331. For example, one or more holes 331o may be configured to regulate airflow between a first space 313a and a second space 313b in the internal space 313 of the enclosure 310, which are spatially separated by the vibrating member 331. For example, one or more holes 331o may be a first hole, a vent hole, a ventilation hole, a duct hole, a first connecting hole, a first communication hole, or a first space connection, but the embodiments herein are not limited thereto.

[0339] One or more holes 331o in one embodiment of this specification may be circular, elliptical, or polygonal, such as a quadrilateral, but the embodiments of this specification are not limited thereto.

[0340] One or more holes 331o may be configured to reduce the air pressure in the internal space 313 of the enclosure 310. For example, one or more holes 331o may be configured to connect a first space 313a and a second space 313b in the internal space 313 of the enclosure 310, which are spatially separated by the vibrating member 331. For example, the first space 313a and the second space 313b in the internal space 313 inside the enclosure 310 may be connected (or communicate) with each other via one or more holes 331o. For example, one or more holes 331o may be configured to reduce the air pressure in the first space 313a of the first enclosure 311, or in the first space 313a provided between the vibrating member 331 and the first enclosure 311. This may extend the low-frequency range (reproduction range), thereby improving the low-frequency acoustic characteristics and / or sound pressure characteristics. Furthermore, since the sound generating module 330 can vibrate more stably due to one or more holes 331o in the vibrating member 331, the acoustic characteristics and / or sound pressure characteristics can be further improved.

[0341] According to one embodiment of this specification, the internal space 313 is located between the first face of the sound-generating module 330 and the first enclosure 311 and may be connected to an opening 310o. The internal spaces 313 may be connected (or communicate) with each other via one or more holes 331o. The enclosure 311 may include a second space 313b located between the second face of the sound-generating module 330 opposite the first face and the second enclosure 312. The internal spaces 313 and the second space 313b may be connected (or communicate) with each other via one or more holes 331o.

[0342] According to one embodiment of this specification, one or more holes 331o may be positioned adjacent to the vibrators 333, 335. For example, one or more holes 331o may be positioned around the vibrators 333, 335. For example, one or more holes 331o may be positioned adjacent to the sides of the vibrators 333, 335. For example, the distance between one or more holes 331o and the vibrators 333, 335 may be shorter than the distance between one or more holes 331o and the side wall (or side) of the enclosure 310. For example, if one or more holes 331o are located far from the vibrators 333, 335, the acoustic characteristics and / or sound pressure characteristics in the low-frequency range may be reduced.

[0343] According to one embodiment of this specification, one or more holes 331o may be configured in a vibrating member 331 adjacent to the vibrating devices 333, 335, with the vibrating devices 333, 335 in between. For example, the vibrating member 331 may include a first peripheral region adjacent to the first side of the vibrating devices 333, 335 and a second peripheral region adjacent to the second side opposite to the first side of the vibrating devices 333, 335. For example, with respect to a first direction (X), the vibrating member 331 may include a first peripheral region, a vibration region, and a second peripheral region. For example, in the vibrating member 331, each of the first and second peripheral regions may be a hole region or an area where the vibrating devices 333, 335 are not located, and the vibration region may be an area where the vibrating devices 333, 335 are located. For example, one or more holes 331o may be configured in the first and second peripheral regions of the vibrating member 331, respectively, to have a symmetrical structure (or a left-right symmetrical structure) or an asymmetrical structure (or a left-right asymmetrical structure) with respect to the vibrating devices 333 and 335.

[0344] According to one embodiment of this specification, the vibrators 333, 335 may include long sides and short sides. The distance (or separation distance, or shortest distance) between one or more holes 331o and the short sides of the vibrators 333, 335 can be expressed as a ratio to the length of the short sides of the vibrators 333, 335. According to one embodiment of this specification, the distance between one or more holes 331o and the vibrators 333, 335 may be 60% or less of the length of the short sides of the vibrators 333, 335.

[0345] One or more holes 331o may be positioned closer to the vibrators 333, 335 than the coupling member 320. The coupling member 320 may include a first coupling member 321 and a second coupling member 322. For example, one or more holes 331o may be positioned closer to the vibrators 333, 335 than the first coupling member 321 and the second coupling member 322. This may improve the acoustic and / or sound pressure characteristics in the low-frequency range.

[0346] According to one embodiment of this specification, one or more holes 331o may not overlap with the opening 310o. For example, one or more holes 331o may be positioned at a distance from the opening 310o. This allows the sound generated in the second space 313b by the vibration (or driving) of the vibrators 333, 335 to be output to the first space 313a through one or more holes 331o, thereby improving the acoustic and / or sound pressure characteristics in the low-frequency range.

[0347] One or more holes 331o in one embodiment of this specification may be circular, elliptical, or polygonal, such as a quadrilateral, but the embodiments of this specification are not limited thereto.

[0348] According to one embodiment of this specification, the sound generated in the back of the vibrating member 331 or in the second space 313b of the enclosure 310 by the vibration (or driving) of the vibrating devices 333, 335 is output to the first space 313a through at least one hole 331o and output (or radiated) through the opening 310o of the first enclosure 311 and the hollow portion 501 of the coupling 500, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0349] Figure 29 shows an acoustic device according to another embodiment of this specification. Figure 29 shows the acoustic device 30 described with reference to Figures 1 to 28, but with a modified enclosure. In the following description, the enclosure will be described in detail, and the remaining components are substantially the same as those described with reference to Figures 1 to 28, so the same reference numerals will be used, and redundant descriptions may be omitted or simplified.

[0350] Referring to Figure 29, in another embodiment of the acoustic device 30 according to this specification, the enclosure 310 may include a first enclosure 311. For example, the enclosure 310 may consist only of the first enclosure 311, with the second enclosure 312 removed (or omitted) from the enclosure 310 described with reference to Figures 1 to 28.

[0351] The enclosure 310 or the first enclosure 311 may be connected to the acoustic device 30 across the internal space 313. The enclosure 310 or the first enclosure 311 may be connected to the rear edge portion of the vibrating member 331 across the internal space 313.

[0352] According to other embodiments of this specification, the vibrating member 331 may be configured to cover the internal space 313 of the first enclosure 311. For example, the vibrating member 331 may be configured to cover a portion of the internal space 313 of the first enclosure 311. The vibrating member 331 may be configured to cover the first space 313a of the first enclosure 311. For example, the vibrating member 331 may be configured to cover a portion of the first space 313a of the first enclosure 311.

[0353] When enclosure 310 is composed of the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics of the acoustic device 30 can be further improved compared to when enclosure 310 is composed of the first enclosure 311 and the second enclosure 312. For example, when enclosure 310 is composed of the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics in the mid-to-low frequency range, for example, the frequency range below 2 kHz, can be further improved, and the acoustic reproduction bandwidth can be further extended.

[0354] According to other embodiments of this specification, the acoustic device 30 can be configured to include a first enclosure 311 and a connecting member 380, thereby further improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands, extending the acoustic reproduction band, and facilitating the attachment or detachment process of the acoustic generating module 330 attached to the vehicle interior material 130.

[0355] Figure 30 shows an acoustic device according to another embodiment of this specification. Figure 30 shows the acoustic device 30 described with reference to Figure 29, with one or more additional halls added. In the following description, one hall will be described in detail, and the remaining configurations will be substantially the same as those described with reference to Figures 1 to 29, so the same reference numerals will be used, and redundant descriptions may be omitted or simplified.

[0356] Referring to Figure 30, the acoustic device 30 according to other embodiments of this specification may further include one or more holes 331o. One or more holes 331o may be configured in the vibrating member 331. The description of one or more holes 331o is substantially the same as that described with reference to Figures 27 and 28, so the same reference numerals may be used, and redundant descriptions may be omitted or simplified.

[0357] According to other embodiments of this specification, the acoustic device 30 may include a first enclosure 311 and at least one or more halls 331o, or may include the first enclosure 311. When the acoustic device 30 is configured to include the first enclosure 311 and one or more halls 331o, the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency ranges may be further improved, and the acoustic reproduction band may be further extended. When the acoustic device 30 is configured to include the first enclosure 311, the acoustic characteristics and / or sound pressure characteristics of the mid-low frequency range may be further improved, and the acoustic reproduction band may be further extended.

[0358] According to other embodiments of this specification, the acoustic device 30 may further improve the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands, further extend the acoustic reproduction band, and facilitate the attachment or detachment process of the acoustic generating module 330 attached to the vehicle interior material 130.

[0359] Figure 31 shows an acoustic device according to another embodiment of this specification. Figure 31 shows the acoustic device 30 described with reference to Figure 29, with the addition of a protective member 410. In the following description, the protective member 410 will be described in detail, and the remaining components are substantially the same as those described with reference to Figure 29, so the same reference numerals will be used, and redundant descriptions may be omitted or simplified.

[0360] Referring to Figure 31, the acoustic device 30 according to one embodiment of this specification may further include a protective member 410.

[0361] A protective member 410 according to one embodiment of this specification may be placed on the sound generating module 330. For example, the protective member 410 can cover the sound generating module 330. For example, the protective member 410 may be placed on the second vibration device 335. For example, the protective member 410 can cover the second vibration device 335.

[0362] According to one embodiment of this specification, the protective member 410 may be made of rubber or sponge, but the embodiments of this specification are not limited thereto. For example, the rubber may be a double synthetic rubber (or ethylene propylene diene M-class rubber), ethylene propylene rubber, or urethane rubber, but the embodiments of this specification are not limited thereto. For example, the protective member 410 may contain a rubber material or be made of a double synthetic rubber (or ethylene propylene diene M-class rubber), ethylene propylene rubber, or urethane rubber. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of this specification are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of this specification are not limited thereto. For example, the tensile strength of EPDM may be 50 kg / cm². 2 ~200 kg / cm 2While this is possible, the examples herein are not limited thereto. For example, the minimum elongation of EPDM may be 200%, but the examples herein are not limited thereto. For example, the operating temperature of EPDM may be from -30°C to 110°C, but the examples herein are not limited thereto. For example, the protective member 410 may be made of highly elastic or low elastic rubber, but the examples herein are not limited thereto. For example, the thickness of the protective member 410 may be from 0.5 mm to 2 mm, but the examples herein are not limited thereto.

[0363] According to one embodiment of this specification, by configuring a protective member 410 on the sound generating module 330, the acoustic characteristics and / or sound pressure characteristics in the low-frequency range can be further enhanced, and the sound device 30 can be protected. For example, the protective member 410 may be a sealing member, a cushioning member, or a shock absorbing member, but the embodiments of this specification are not limited thereto.

[0364] According to one embodiment of this specification, the protective member 410 may be made of a different material from the first connecting member 321. For example, the protective member 410 may be made of a material with a different adhesive strength from the first connecting member 321. The protective member 410 can protect the sound device 30 by being made of a material having an adhesive strength different from that of at least one of the first connecting member 321 and the second connecting member 322. For example, the protective member 410 can be made of rubber such as EPDM to enhance the sound pressure in the low-frequency range and protect the sound device 30.

[0365] According to one embodiment of this specification, the protective member 410 may be connected to or coupled to the vibrating member 331 and / or the vibrating device. The protective member 410 may be connected to or coupled to the vibrating member 331 and / or the second vibrating device 335. For example, the protective member 410 may be configured to protect or fix the vibrating member 331 and / or the vibrating device 330. The protective member 410 may be configured to be fixed to the vibrating member 331 and / or the second vibrating device 335 to protect the vibrating member 331 and / or the second vibrating device 335.

[0366] The vibrating member 331 may include a first surface and a second surface different from (or opposite to) the first surface. For example, the enclosure 310 may be connected to or coupled to the first surface of the vibrating member 331. The protective member 410 may be in contact with the second vibrating device 335 and the second surface of the vibrating member 331. For example, the protective member 410 may be configured to cover the second vibrating device 335 and the second surface of the vibrating member 331.

[0367] The protective member 410 may be the same size as the vibrating member 331, but the embodiments herein are not limited thereto. For example, the protective member 410 may be larger than the vibrating devices 333 and 335 and smaller than the vibrating member 331, but the embodiments herein are not limited thereto.

[0368] According to other embodiments of this specification, the acoustic device 30 may include at least one of the first enclosure 311, the connecting member 380, and the protective member 410, thereby further improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency ranges, extending the acoustic reproduction band, and providing protection from external impacts.

[0369] Figure 32 shows an acoustic device according to another embodiment of this specification. Figure 32 shows the acoustic device 30 described with reference to Figure 30, with the addition of a protective member 410. In the following description, the protective member 410 will be described in detail, and the remaining components are substantially the same as those described with reference to Figure 30, so the same reference numerals will be used, and redundant descriptions may be omitted or simplified.

[0370] Referring to Figure 32, a protective member 410 according to one embodiment of this specification may be placed on the sound generating module 330. For example, the protective member 410 can cover the sound generating module 330. For example, the protective member 410 may be placed on the second vibration device 335. For example, since the protective member 410 is identical or substantially the same as the protective member 400 described with reference to Figure 31, a redundant explanation of it will be omitted.

[0371] Other embodiments of the acoustic device 30 according to this specification may further include at least one hole 410h (or connecting hole) in the protective member 410.

[0372] At least one hole 410h of the protective member 410 may be configured to correspond to one or more holes 331o in the vibrating member 331. For example, at least one hole 410h of the protective member 410 may be connected to one or more holes 331o in the vibrating member 331. For example, the hole 410h may be a second hole, vent hole, ventilation hole, duct hole, second connecting hole, second communication hole, or second space connecting portion, but the embodiments herein are not limited thereto.

[0373] According to other embodiments of this specification, the acoustic device 30 may further improve the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency ranges, and further extend the acoustic reproduction band, by including at least one of the first enclosure 311, one or more holes 331o, and at least one hole 410h of the protective member 410.

[0374] The inventors of this specification recognized that the acoustic properties differ depending on the structure of the coupling 500. Therefore, the inventors of this specification conducted various studies and experiments on the structure of the coupling 500. Through these studies and experiments, they invented an acoustic device and a transport device including the coupling 500, which can improve the acoustic properties and / or sound pressure properties. This is described below.

[0375] Figure 33 shows an acoustic device according to another embodiment of this specification. Figure 34 shows a coupling according to another embodiment of this specification. Figures 33 and 34 are acoustic devices 30 described with reference to Figures 14 to 32, with the coupling 500 modified. In the following description, the coupling 500 will be described in detail, and the remaining components are substantially the same as those described with reference to Figures 14 to 32, so the same reference numerals will be used, and redundant descriptions may be omitted or simplified.

[0376] Referring to Figures 33 and 34, the description of the coupling portion 500 in the acoustic device 30 according to other embodiments of this specification is substantially the same as that described with reference to Figures 14 to 32. Therefore, the same reference numerals can be used, and redundant descriptions can be omitted or simplified.

[0377] The joint 500 according to other embodiments of this specification may further include a chamfered portion 503a.

[0378] The connecting portion 500 is connected to the internal space 313 of the enclosure 310 and may include a hollow portion 501 having a chamfered portion 503a. The chamfered portion 503a may be formed in the hollow portion 501. For example, the hollow portion 501 may be connected to the internal space 313 of the enclosure 310 via an opening 310o of the enclosure 310.

[0379] The vehicle interior material 130 may include a first surface and a second surface different from (or opposite to) the first surface. The first surface may be the surface facing the enclosure 310. The vehicle interior material 130 may include holes 137 formed in the first surface and the second surface. For example, the holes 137 of the vehicle interior material 130 may be configured to penetrate the first surface and the second surface. For example, the latch member 503 may be configured to penetrate the hole (or through-hole) 137 and be coupled to the second surface (or interior surface or back surface) 130s of the vehicle interior material 130. For example, the latch member 503 may include a chamfered portion 503a. For example, the latch member 503 may overlap with the second surface of the vehicle interior material 130.

[0380] Other embodiments of the specification may include non-right-angle shapes for the chamfered portion 503a. For example, the chamfered portion 503a may include one or more curved (or rounded) shapes and inclined surfaces. For example, the chamfered portion 503a may have curvature. The curvature of the chamfered portion 503a may change the acoustic and / or sound pressure characteristics. For example, compared to the case where the chamfered portion 503a has a right-angle shape, when the chamfered portion 503a has a non-right-angle shape, peaks and / or dips from the low-frequency range to the high-frequency range may be improved, and the sound pressure balance characteristics or sound pressure flatness characteristics may be improved. Furthermore, the greater the curvature of the chamfered portion 503a, the further the sound pressure flatness characteristics and / or sound pressure characteristics in the high-frequency range may be improved. Therefore, according to the embodiments herein, by configuring the coupling portion 500 to have a round shape or an inclined surface, the acoustic characteristics and / or sound pressure characteristics in the frequency range including low-frequency sounds can be improved, and the peaks and / or dips in the high-frequency range can be improved, thereby improving the balance characteristics of sound pressure or the flatness characteristics of sound pressure.

[0381] Referring to Figure 34, the joint 500 may include a first side (or bottom) 500a and a second side (or top) 500b. The second side 500b may be inversely oriented to the first side 500a. For example, a chamfered portion 503a may be formed between the second side 500b and the hollow portion 501. For example, the chamfered portion 503a may be formed in a non-right-angle shape in the region (or corner region) between the inner surface (or internal surface) of the hollow member 502 and the top surface of the latch member 503. For example, the hollow portion 501 may be connected to the internal space 313 via the opening 310o of the enclosure 310.

[0382] The hollow section 501 may be straight-line shaped, as described in other embodiments of this specification, but the embodiments of this specification are not limited thereto. The hollow section 501 may be straight-line shaped parallel to the second direction (Y) or the short-side direction of the enclosure 310, but the embodiments of this specification are not limited thereto. For example, the hollow section 501 may include a slit shape having a major axis and a minor axis, but the embodiments of this specification are not limited thereto. For example, the major axis of the hollow section 501 may be parallel to the second direction (Y) or the short-side direction of the enclosure 310, but the embodiments of this specification are not limited thereto. For example, the minor axis of the hollow section 501 may be parallel to the first direction (X) or the long-side direction of the enclosure 310, but the embodiments of this specification are not limited thereto. For example, the hollow section 501 may be star-shaped (*) or cross-shaped (+) as described with reference to Figures 18 and 19, but the embodiments of this specification are not limited thereto. The shape of the chamfered portion 503a can be applied identically to various shapes of the hollow portion 501.

[0383] According to other embodiments of this specification, the coupling portion 500 may be configured to have a width (W). For example, the coupling portion 500 may include a latch member 503 having a width (W). For example, the latch member 503 may be configured to have a width (W). For example, the width (W) of the latch member 503 may be the length extending from the outer surface (outer peripheral surface) of the hollow portion 501 in a direction parallel to the vehicle interior material 130 (or a first direction (X)). For example, the width (W) of the latch member 503 may be the length extending from the lower outer surface of the hollow portion 502 in a direction parallel to the vehicle interior material 130 (or a first direction (X)). The latch member 503 having a width (W) may be superimposed on at least one of the vehicle interior material 130, the connecting member 380, and the enclosure 310. For example, the width (W) of the latch member 503 may be the same as the length of the short axis of the hollow portion 501. The width (W) of the latch member 503 or the length of the short axis of the hollow portion 501 may be 1 mm or more, but the embodiments herein are not limited thereto. For example, the width (W) of the latch member 503 or the length of the short axis of the hollow portion 501 may be 1 mm to 5 mm or less, but the embodiments herein are not limited thereto.

[0384] According to one embodiment of this specification, the wider the width (W) of the latch member 503, the improved the sound pressure characteristics may be, and the inflow of dust or foreign matter from the outside may be reduced or minimized. According to the embodiment of this specification, the width (W) of the latch member 503 may be 1 mm or more, and the embodiment of this specification is not limited thereto. For example, the width (W) of the latch member 503 may be 1 mm to 5 mm, and the embodiment of this specification is not limited thereto.

[0385] According to the embodiments of this specification, since the width (W) of the latch member 503 is 1 mm or more, the acoustic characteristics and / or sound pressure characteristics in the frequency range including low-frequency sounds can be improved, and the peaks and / or dips in the high-frequency range can be improved, thereby improving the balance characteristics or flatness characteristics of sound pressure. According to the embodiments of this specification, since the width (W) of the latch member 503 is 1 mm or more, the inflow of dust or foreign matter from the outside can be reduced or minimized.

[0386] According to other embodiments of this specification, the joint 500 may be configured to have a length (L). The length (L) of the joint 500 may be a length to which the acoustic device 30 can be attached to the vehicle interior material 130. For example, the length (L) of the joint 500 may be less than the sum of the thicknesses of the vehicle interior material 130, the connecting member 380, and the enclosure 310. With respect to the thickness direction (Z) of the vehicle interior material 130, the length (L) of the joint 500 may correspond to the length of the hollow portion 501. The length (L) of the joint 500 may correspond to the length between the latch member 503 and the hook member 504. For example, the length (L) of the joint 500 may be the length between the upper surface of the latch member 503 that contacts the vehicle interior material 130 and the lower surface of the hook member 504 that contacts the enclosure 310. The length (L) of the joint 500 may be 10 mm or more, but the embodiments of this specification are not limited thereto. For example, the length (L) of the joint 500 may be 10 mm or more and less than 19 mm, but the examples herein are not limited thereto.

[0387] According to other embodiments of this specification, an acoustic device 30 with improved acoustic and / or sound pressure characteristics can be provided by configuring the device to include one or more of the following: the shape of the joint 500, the width (W) of the joint 500, and the length (L) of the joint 500. For example, the shorter the length (L) of the joint 500, the better the sound pressure characteristics may be. According to embodiments of this specification, the length (L) of the joint 500 may be 10 mm or more, and embodiments of this specification are not limited thereto. For example, the length (L) of the joint 500 may be 10 mm or more and less than 19 mm, and embodiments of this specification are not limited thereto. For example, if the length (L) of the joint 500 is shorter than 10 mm, acoustic dips and / or peaks may be improved, but there may be problems in mounting the acoustic device to the roof trim of the transport vehicle. According to the embodiments herein, since the length (L) of the coupling portion 500 is set to 10 mm or more and less than 19 mm, the acoustic characteristics and / or sound pressure characteristics in the frequency range including the low-frequency range can be improved, and the peaks and / or dips in the high-frequency range can be improved, thereby improving the balance characteristics of sound pressure or the flatness characteristics of sound pressure.

[0388] The coupling portion 500 described with reference to Figures 33 and 34 may be applied to the acoustic device 30 described with reference to Figures 26 to 32. For example, the coupling portion 500 of the acoustic device 30 described with reference to Figures 26 to 32 may be changed to the coupling portion 500 described with reference to Figures 33 and 34. For example, the description of the remaining components excluding the coupling portion 500 in the description of the acoustic device 30 in Figures 26 to 32 may be included in the description of the acoustic device 30 shown in Figures 33 and 34, so redundant descriptions therein will be omitted. For example, an acoustic device according to another embodiment of this specification includes at least one of the first enclosure 311, one or more holes 331o, and at least one hole 410h of the protective member 410, and is configured to include one of the shape of the coupling portion 500, the width (W) of the coupling portion 500, and the length (L) of the coupling portion 500, so that the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands can be further improved and the acoustic reproduction band can be further extended.

[0389] Figure 35 shows an acoustic device according to another embodiment of this specification. Figure 35 shows another embodiment of the connecting member 380 described with reference to Figure 24. Accordingly, in the following description, redundant descriptions of the remaining components other than the connecting member 380 can be omitted or simplified.

[0390] The inventors of this specification found that when the connecting member 380 shown in Figure 24 is used, a decrease in acoustic characteristics and / or sound pressure characteristics is observed because the edge portion of the connecting member 380 is not connected to or in contact with the vehicle interior material 130. For example, they recognized that a loss of sound (or vibration transmission) occurs due to the edge portion of the connecting member 380 that is not connected to or in contact with the vehicle interior material 130. As a result, they recognized that the acoustic characteristics and / or sound pressure characteristics in the low-frequency range are reduced. Therefore, the inventors of this specification conducted various studies and experiments. Through these studies and experiments, they invented an acoustic device and a transport device including the same that can further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range. This is described below.

[0391] Referring to Figure 35, another embodiment of the acoustic device 30 according to this specification may further include a connecting member 380.

[0392] The connecting member 380 may include a first part and a second part. The second part may be the edge portion of the enclosure 310. The second part may be the portion (or region) between the interior material 130 and the edge portion of the enclosure 310. The first part may be the remaining portion of the enclosure 310 excluding the edge portion. For example, the first part may correspond to the central portion of the enclosure 310 surrounded by the second part which corresponds to the edge portion of the enclosure 310.

[0393] According to one embodiment of this specification, the first portion of the connecting member 380 may include an opening hole 380o connected to the internal space 313 of the enclosure 310. For example, the first portion may include an opening hole 380o connected to the internal space 313 of the first enclosure 311.

[0394] According to one embodiment of this specification, the enclosure 310 or the first enclosure 311 may include one or more regions. For example, the enclosure 310 or the first enclosure 311 may include a first region (A1), a second region (A2), and a third region (A3).

[0395] The first region (A1) may correspond to the central portion of the enclosure 310 or the first enclosure 311. The first region (A1) may be located in the central portion of the enclosure 310 or the first enclosure 311. The second region (A2) may correspond to the edge portion surrounding the central portion of the enclosure 310 or the first enclosure 311. The third region (A3) may be located between the first region (A1) and the second region (A2). For example, the first portion of the connecting member 380 may be located between the first region (A1) and the second region (A2). For example, the second portion of the connecting member 380 may be located in the second region (A2).

[0396] According to one embodiment of this specification, the first and second parts of the connecting member 380 may have different thicknesses. For example, the connecting member 380 may include a first part and a second part having different thicknesses. In the connecting member 380, the thickness (T1) of the first part may be different from the thickness (T1+T2) of the second part. For example, in the connecting member 380, the thickness (T1+T2) of the second part may be thicker than the thickness (T1) of the first part. For example, the thickness (T1) of the connecting member 380 in the first region (A1) may be different from the thickness (T1+T2) of the connecting member 380 in the second region (A2). At least one of the thicknesses of the connecting member 380 in the first region (A1) and the third region (A3) may be different from the thickness (T1+T2) of the connecting member 380 in the second region (A2). For example, the thickness (T1+T2) of the connecting member 380 in the second region (A2) can be greater than the thickness (T1) of the connecting member 380 in the first region (A1).

[0397] According to one embodiment of this specification, since the second portion of the connecting member 380 has a thickness (T1 + T2) greater than that of the first portion, the edge portion of the connecting member 380 can be connected to or in contact with the vehicle interior material 130 without lifting. This prevents the edge portion of the connecting member 380 from lifting away from the vehicle interior material 130, and vibrations within the edge portion of the enclosure 310 can be transmitted to the vehicle interior material 130 without loss of vibration (or vibration transmission) at the edge portion of the enclosure 310. Vibrations at the edge portion of the enclosure 310 increase the vibration area of ​​the vehicle interior material 130, which can further improve or enhance the acoustic characteristics in the low-frequency range. Therefore, since the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 without loss, the acoustics in the low-frequency range can be further improved. For example, the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 through the opening 310o and the edge portion of the enclosure 310, thereby increasing the efficiency of vibration transmission from the enclosure 310 to the vehicle interior material 130 and further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0398] The connecting member 380 according to one embodiment of this specification may include a first connecting member 381 and a second connecting member 382.

[0399] The first connecting member 381 may be located in the first and second parts. The first connecting member 381 may be connected to the enclosure 310. The first connecting member 381 may be connected to (or attached to) the first enclosure 311. The first connecting member 381 may be connected to (or attached to) the back surface of the first enclosure 311. The first connecting member 381 may be connected to (or attached to) the first to third regions (A1, A2, A3) of the enclosure 310. For example, the first connecting member 381 may be connected to (or attached to) the entire back surface of the first enclosure 311.

[0400] According to one embodiment of this specification, the first connecting member 381 may be located in the first part and may include an opening hole 380o that connects to the internal space 313 of the enclosure 310. For example, the first connecting member 381 may be located in the first part and may include an opening hole 380o that connects to the internal space 313 of the first enclosure 311.

[0401] The second connecting member 382 may be located in the second portion. The second connecting member 382 may be connected to a portion of the first connecting member 381. The second connecting member 382 may be located on the first connecting member 381 in the second portion. For example, the first portion may include only the first connecting member 381 of the two connecting members 381 and 382. The first connecting member 381 and the second connecting member 382 may be together in the second portion. For example, the second portion may include both the first connecting member 381 and the second connecting member 382. For example, the first connecting member 381 and the second connecting member 382 may be together in the second region (A2).

[0402] The first and second parts of the connecting member 380 may have different widths (or sizes). In the connecting member 380, the width of the first part may be smaller than the width of the second part. For example, the width of the connecting member 380 in the first region (A1) and the third region (A3) may be smaller than the width of the connecting member 380 in the second region (A2). This allows the connecting member 380 to include a first and second part having different sizes (or widths) and different thicknesses.

[0403] The second connecting member 382 may be located on the edge of the first connecting member 381. The second connecting member 382 may be constructed by laminating it onto the first connecting member 381 in a second portion. For example, the second connecting member 382 may be constructed by laminating it onto the first connecting member 381 in a second region (A2). This allows the thickness of the second portion of the connecting member 380 (T1 + T2) to be greater than the thickness of the first portion (T1), so that the edge portion of the enclosure 310 can be connected to (or in contact with) the vehicle interior material 130 without lifting. For example, the second connecting member 382 may be a cushioning member or a padding member, but the embodiments herein are not limited thereto.

[0404] Since the first connecting member 381 may be substantially the same as the connecting member 380 described with reference to Figure 24, a redundant explanation of it will be omitted.

[0405] The second connecting member 382 may contain the same substance (or material) as the first connecting member 381, but the embodiments herein are not limited thereto. For example, one of the first connecting member 381 and the second connecting member 382 may be made of a material having relatively high elasticity (or Young's modulus). One of the first connecting member 381 and the second connecting member 382 may be a highly elastic rubber, but the embodiments herein are not limited thereto. One of the first connecting member 381 and the second connecting member 382 may be made of a material having relatively high elasticity (or Young's modulus) and relatively high tensile strength. For example, one of the first connecting member 381 and the second connecting member 382 may contain rubber material, or be made of double synthetic rubber (or ethylene propylene diene M-class rubber), ethylene propylene rubber, or urethane rubber. For example, ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments herein are not limited thereto. For example, the hardness of EPDM can range from 40 to 90, but the examples described herein are not limited to this. For example, the tensile strength of EPDM is 50 kg / cm². 2 ~200 kg / cm 2While this is possible, the examples herein are not limited to this. For example, the minimum elongation of EPDM may be 200%, but the examples herein are not limited to this. For example, the operating temperature of EPDM may be from -30°C to 110°C, but the examples herein are not limited to this.

[0406] According to one embodiment of this specification, the connecting member 320 may be made of a different material than the connecting member 380. For example, at least one of the first connecting member 381 and the second connecting member 382 may be made of a material having higher elasticity than the connecting member 320.

[0407] According to one embodiment of this specification, the width of the connecting member 380 in the second portion may be greater than the width of the connecting member 320. For example, the width of the connecting member 380 in the second region (A2) may be greater than the width of the connecting member 320.

[0408] According to one embodiment of this specification, each of the first connecting member 381 and the second connecting member 382 of the connecting member 380 has a compressive force (or contraction force) and an elastic restoring force, and can be contracted or compressed by the connection between the joint 500 and the first enclosure 311. For example, the first connecting member 381, which is positioned (or interposed) between the first enclosure 311 and the vehicle interior material 130, may have a first thickness (T1) that is compressed by the applied pressure of the first enclosure 311. The second connecting member 382, ​​which is positioned (or interposed) between the first enclosure 311 and the vehicle interior material 130, may have a second thickness (T2) that is compressed by the applied pressure of the first enclosure 311.

[0409] The first thickness (T1) of the first connecting member 381 may be the same as or different from the second thickness (T2) of the second connecting member 382. The first thickness (T1) of the first connecting member 381 and the second thickness (T2) of the second connecting member 382 may be 0.5 mm or more, but the embodiments herein are not limited thereto. For example, the first thickness (T1) of the first connecting member 381 and the second thickness (T2) of the second connecting member 382 may be between 0.5 mm and 3 mm, but the embodiments herein are not limited thereto.

[0410] Other embodiments of the acoustic device 30 according to this specification may further include an air gap (AG) in the region between the enclosure 310 and the vehicle interior material 130. For example, the air gap (AG) may be in the region between the first part of the connecting member 380 and the vehicle interior material 130, or in the region between the first part and the second part of the connecting member 380. For example, the air gap (AG) may be in the third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310. For example, the air gap (AG) may be in the region between the third region (A3) of the enclosure 310 and the vehicle interior material 130. For example, by providing an air gap (AG) in a third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310, vibrations from the first region (A1) and the second region (A2) can be separated or interference minimized, thereby increasing the vibration force (or amount of vibration) transmitted from the second region (A2) of the enclosure 310, for example, the edge portion, to the vehicle interior material 130. This can extend the low-frequency range (reproduction range), and thus further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0411] According to one embodiment of this specification, by configuring a connecting member 380 including first and second parts having different thicknesses, it is possible to provide an acoustic device 30 with further improved acoustic characteristics and / or sound pressure characteristics in the low-frequency range. According to one embodiment of this specification, by configuring a second connecting member 382, ​​the vibration area (or vibration region) of the roof trim can be widened when the acoustic device 30 is coupled to the roof trim of the transport vehicle, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0412] Figure 36 shows a method for connecting the acoustic device and coupling shown in Figure 35, according to another embodiment of this specification.

[0413] Referring to Figures 35 and 36, according to one embodiment of the specification, the first connecting member 381 of the connecting member 380 is connected (or attached) to the back surface (or first or second portion) of the enclosure 310 or the first enclosure 311 such that the hole 380o is superimposed (or connected) to the opening 310o of the enclosure 310 or the first enclosure 311, and the second connecting member 382 of the connecting member 380 may be connected (or attached) to the edge portion (or second portion) of the first connecting member 381.

[0414] Enclosure 310 or the first enclosure 311 may be positioned on the vehicle interior material 130 such that its opening 310o overlaps with (or connects to) a hole 137 in the vehicle interior material 130. The coupling 500 may be connected to or coupled to the sound device 30 or enclosure 310 in the interior space of the vehicle via the hole 137 in the vehicle interior material 130 (in the direction of the arrow). For example, the coupling 500 may be connected to or coupled to the sound device 30 or enclosure 310 in the interior space of the vehicle via the second hole 137 in the vehicle interior material 130 and the hole 380o in the first connecting member 381 (in the direction of the arrow). For example, the coupling 500 may be housed in or inserted into the second hole 137 in the vehicle interior material 130, the hole 380o in the first connecting member 381, and the opening 310o in the first enclosure 311 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be connected to or coupled to the opening 310o of the first enclosure 311.

[0415] Therefore, the first enclosure 311 is connected to (or in contact with) the vehicle interior material 130 by the coupling portion 500 and by the first connecting member 381 and the second connecting member 382, ​​and can produce sound by vibrating the vehicle interior material 130 with the vibration of the vibration device.

[0416] The first connecting member 381 may have an initial thickness (T1') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T1) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling 500 and the enclosure 310. For example, when the coupling 500 is coupled (or connected) to the enclosure 310, the thickness of the first connecting member 381 can be compressed from the initial thickness (T1') to the compressed thickness (T1) by the pressure applied from the enclosure 310, so that vibrations in the first region (A1) in the first enclosure 311 can be efficiently transmitted to the vehicle interior material 130 via the first portion of the first connecting member 381. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling 500, the first connecting member 381 can be restored from the deformed thickness (T1) to the initial thickness (T1') by the elastic restoring force.

[0417] The second connecting member 382 may have an initial thickness (T2') before compression (or contraction), and may be compressed (or contracted) to a deformation thickness (or compression thickness) (T2) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling 500 and the enclosure 310. For example, when the coupling 500 is coupled (or connected) to the enclosure 310, the thickness of the second connecting member 382 may be compressed from the initial thickness (T2') to the compression thickness (T2) by the pressure applied from the enclosure 310, so that vibrations in the second region (A2) in the first enclosure 311 can be efficiently transmitted to the vehicle interior material 130 via the compressed first connecting member 381 and second connecting member 382. For example, if the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the joint 500, the second connecting member 382 can be restored from the deformed thickness (T2) to the initial thickness (T2') by the elastic restoring force.

[0418] The vehicle interior material 130 connected to (or in contact with) the enclosure 310 or the first enclosure 311 may be deformed to include a bent portion or at least one curved portion by the connection (or linkage) between the coupling portion 500 and the enclosure 310, thereby preventing any lifting that occurs between the edge portion of the enclosure 310 or the first enclosure 311 and the vehicle interior material 130, which can be prevented by the second portion of the coupling member 380 having a relatively thicker thickness. This allows vibrations at the edge portion of the enclosure 310 or the first enclosure 311 due to vibrations of the vibrator to be transmitted to the vehicle interior material 130 without loss, thereby improving the vibration efficiency transmitted from the enclosure 310 to the vehicle interior material 130, and potentially further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0419] The acoustic device 30 described with reference to Figures 35 and 36 may further include one or more holes 331o described with reference to Figure 30, or a protective member 410 described with reference to Figure 31, or one or more holes 331o described with reference to Figure 32, a protective member 410, and at least one hole 410h of the protective member 410, and redundant descriptions thereof are omitted. For example, an acoustic device according to another embodiment of this specification may include at least one of the first enclosure 311, one or more holes 331o, and at least one hole 410h of the protective member 410, and may include one of the shape of the joint 500, the width (W) of the joint 500, and the length (L) of the joint 500, so that the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands may be further improved and the acoustic reproduction band may be further extended.

[0420] Figure 37 shows an acoustic device according to another embodiment of this specification. Figure 37 shows another embodiment of the connecting member 380 described with reference to Figures 35 and 36. Accordingly, in the following description, redundant descriptions of the remaining components other than the connecting member 380 can be omitted or simplified. The descriptions of the enclosure 310 or first enclosure 311 and the connecting member 380 described with reference to Figures 35 and 36 may be included in the description of Figure 37.

[0421] Referring to Figure 37, another embodiment of the acoustic device 30 according to this specification may further include a connecting member 380.

[0422] The connecting member 380 may include a first part and a second part. The first part of the connecting member 380 may include an opening hole 380o that connects to the internal space 313 of the enclosure 310. For example, the first part of the connecting member 380 may include an opening hole 380o that connects to the internal space 313 of the first enclosure 311. The enclosure 310 or the first enclosure 311 may include a first region (A1), a second region (A2), and a third region (A3).

[0423] According to one embodiment of this specification, the first and second parts of the connecting member 380 may have different thicknesses (T3, T4). For example, the connecting member 380 may include a first part and a second part having different thicknesses (T3, T4). In the connecting member 380, the thickness (T3) of the first part may differ from the thickness (T4) of the second part. For example, in the connecting member 380, the thickness (T4) of the second part may be even thicker than the thickness (T3) of the first part. For example, the thickness (T3) of the connecting member 380 in the first region (A1) may differ from the thickness (T4) of the connecting member 380 in the second region (A2). For example, the thickness (T4) of the connecting member 380 in the second region (A2) may be even thicker than the thickness (T3) of the connecting member 380 in the first region (A1). For example, the connecting member 380 may not be located in the third region (A3) between the first region (A1) and the second region (A2), or in the portion between the first part and the second part.

[0424] According to one embodiment of this specification, since the second portion of the connecting member 380 has a greater thickness (T4) than the first portion, the edge portion of the connecting member 380 can be connected to or in contact with the vehicle interior material 130 without lifting. This prevents the edge portion of the connecting member 380 from lifting away from the vehicle interior material 130, and vibrations within the edge portion of the enclosure 310 can be transmitted to the vehicle interior material 130 without loss of vibration (or vibration transmission) at the edge portion of the enclosure 310. Vibrations at the edge portion of the enclosure 310 increase the vibration area of ​​the vehicle interior material 130, which can further improve or complement the acoustic characteristics in the low-frequency range. Therefore, since the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 without loss, the acoustics in the low-frequency range can be further improved. For example, the sound generated by the vibration of the acoustic device 30 can be transmitted to the vehicle interior material 130 through the opening 310o and the edge portion of the enclosure 310, thereby increasing the efficiency of vibration transmission from the enclosure 310 to the vehicle interior material 130 and further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0425] According to one embodiment of this specification, the connecting member 380 may include a first connecting member 383 and a second connecting member 384.

[0426] The first connecting member 381 can be connected to the enclosure 310. The first connecting member 381 can be located in the first part. The first connecting member 383 can be located only in the first part of the first and second parts. The first connecting member 383 can be connected to (or attached to) the first region (A1) of the enclosure 310. For example, the first connecting member 383 can be connected to (or attached to) the back of the first enclosure 311 corresponding to the first part of the first and second parts. For example, the first connecting member 383 can be connected to (or attached to) the central part (or back central part) of the first enclosure 311. For example, the first connecting member 383 can be connected to (or attached to) only the first region (A1) of the first to third regions (A1, A2, A3) of the enclosure 310.

[0427] According to one embodiment of this specification, the first connecting member 383 may be located in the first part and may include an opening hole 380o that connects to the internal space 313 of the enclosure 310. For example, the first connecting member 383 may be located in the first part and may include an opening hole 380o that connects to the internal space 313 of the first enclosure 311.

[0428] The second connecting member 384 may be located in the second part. The second connecting member 384 may be located only in the second part of the first part and separated from the first connecting member 383. The second connecting member 384 may be located in the second part of the first part and surrounding the first connecting member 383 across an air gap (AG). The second connecting member 384 may be connected to (or attached to) a second region (A2) of the enclosure 310. For example, the second connecting member 384 may be connected to (or attached to) the back of the first enclosure 311 corresponding to the second part of the first part and the second part. For example, the second connecting member 384 may be connected to (or attached to) an edge (or back edge) of the first enclosure 311. For example, the second connecting member 384 may be connected (or attached) only to the second region (A2) of the first to third regions (A1, A2, A3) of the enclosure 310.

[0429] The first and second parts of the connecting member 380 may have different widths (or sizes). The width of the first part may be smaller than the width of the second part. For example, the width of the first connecting member 383 in the first region (A1) may be smaller than the width of the second connecting member 384 in the second region (A2). This allows the first connecting member 383 and the second connecting member 384 to have different sizes (or widths) and different thicknesses.

[0430] The first connecting member 383 and the second connecting member 384 may each be a cushioning member or a padding member, but the embodiments herein are not limited thereto.

[0431] The first connecting member 383 may contain the same material as the second connecting member 384. The first connecting member 383 and the second connecting member 384 may each be made of high-elasticity rubber or the like, but the embodiments herein are not limited thereto. For example, the first connecting member 383 and the second connecting member 384 may each contain a rubber material or be made of double synthetic rubber (or ethylene propylene diene M-class rubber), ethylene propylene rubber, or urethane rubber.

[0432] According to one embodiment of this specification, the width of the connecting member 380 in the second portion may be greater than the width of the connecting member 320. For example, the width of the connecting member 380 in the second region (A2) may be greater than the width of the connecting member 320.

[0433] According to one embodiment of this specification, each of the first connecting member 383 and the second connecting member 384 of the connecting member 380 has a compressive force (or contraction force) and an elastic restoring force, and can be contracted or compressed by the connection between the joint 500 and the first enclosure 311. For example, the first connecting member 383, which is positioned (or interposed) between the first enclosure 311 and the vehicle interior material 130, may have a first thickness (T3) that is compressed by the applied pressure of the first enclosure 311. The second connecting member 384, which is positioned (or interposed) between the first enclosure 311 and the vehicle interior material 130, may have a second thickness (T4) that is compressed by the applied pressure of the first enclosure 311.

[0434] The first thickness (T3) of the first connecting member 383 may differ from the second thickness (T4) of the second connecting member 384. The first thickness (T3) of the first connecting member 383 and the second thickness (T4) of the second connecting member 384 may be 0.5 mm or more, but the embodiments herein are not limited thereto. For example, the first thickness (T3) of the first connecting member 383 and the second thickness (T4) of the second connecting member 384 may be between 0.5 mm and 3 mm, but the embodiments herein are not limited thereto. For example, the first thickness (T3) of the first connecting member 383 and the second thickness (T4) of the second connecting member 384 may have different thicknesses within the range of 0.5 mm to 3 mm. For example, the second thickness (T4) of the second connecting member 384 may be thicker than the first thickness (T3) of the first connecting member 383 within the range of 0.5 mm to 3 mm.

[0435] Other embodiments of the acoustic device 30 according to this specification may further include an air gap (AG). For example, the air gap (AG) may be located in the region between the first part of the connecting member 380 and the vehicle interior material 130, or in the region between the first part and the second part of the connecting member 380. For example, the air gap (AG) may be located in the third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310. For example, the air gap (AG) may be located in the region between the third region (A3) of the enclosure 310 and the vehicle interior material 130. For example, by providing an air gap (AG) in a third region (A3) between the first region (A1) and the second region (A2) of the enclosure 310, vibrations from the first region (A1) and the second region (A2) can be separated or interference minimized, thereby increasing the vibration force (or amount of vibration) transmitted from the second region (A2) of the enclosure 310, for example, the edge portion, to the vehicle interior material 130. This can extend the low-frequency range (reproduction range), and thus further improve the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0436] According to one embodiment of this specification, by configuring first and second connecting members 383 and 384 having different thicknesses (T3 and T4), it is possible to provide an acoustic device 30 with further improved acoustic characteristics and / or sound pressure characteristics in the low-frequency range. According to one embodiment of this specification, by configuring the second connecting member 384, when the acoustic device 30 is coupled to the roof trim of the transport vehicle, the vibration area (or vibration region) of the roof trim can be widened, thereby further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0437] Figure 38 shows a method for connecting the acoustic device and coupling shown in Figure 37, according to another embodiment of this specification.

[0438] Referring to Figures 37 and 38, according to one embodiment of the Specified, the first connecting member 383 of the connecting member 380 is connected to (or attached to) the central portion (or first portion) of the enclosure 310 or the first enclosure 311 such that the hole 380o overlaps with (or connects to) the opening 310o of the enclosure 310 or the first enclosure 311, and the second connecting member 384 of the connecting member 380 is connected to (or attached to) the edge portion (or second portion) of the enclosure 310 or the first enclosure 311.

[0439] Enclosure 310 or the first enclosure 311 is positioned on the vehicle interior material 130 such that its opening 310o overlaps with (or connects to) the hole 137 of the vehicle interior material 130. The coupling 500 may be connected to or coupled to the sound device 30 or enclosure 310 in the interior space of the vehicle via the hole 137 of the vehicle interior material 130 (in the direction of the arrow). For example, the coupling 500 may be connected to or coupled to the sound device 30 or enclosure 310 in the interior space of the vehicle via the second hole 137 of the vehicle interior material 130 and the hole 380o of the first connecting member 383 (in the direction of the arrow). For example, the coupling 500 may be housed in or inserted into the hole 137 of the vehicle interior material 130, the hole 380o of the first connecting member 383, and the opening 310o of the first enclosure 311 in the interior space of the vehicle. For example, the hook member 504 of the coupling portion 500 may be connected to or coupled to the opening 310o of the first enclosure 311.

[0440] Therefore, the first enclosure 311 is connected to (or in contact with) the vehicle interior material 130 by the coupling portion 500 and by the first connecting member 383 and the second connecting member 384, and can produce sound by vibrating the vehicle interior material 130 with the vibration of the vibration device.

[0441] The first connecting member 383 may have an initial thickness (T3') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T3) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling 500 and the enclosure 310. For example, when the coupling 500 is coupled (or connected) to the enclosure 310, the thickness of the first connecting member 383 can be compressed from the initial thickness (T3') to the compressed thickness (T3) by the pressure applied from the enclosure 310, so that vibrations in the first region (A1) in the first enclosure 311 can be efficiently transmitted to the vehicle interior material 130 via the first connecting member 383. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling 500, the first connecting member 383 can be restored from the deformed thickness (T3) to the initial thickness (T3') by the elastic restoring force.

[0442] The second connecting member 384 may have an initial thickness (T4') before compression (or contraction), and may be compressed (or contracted) to a deformed thickness (or compressed thickness) (T4) by the pressure applied from the enclosure 310 by the coupling (or connection) of the coupling 500 and the enclosure 310. For example, when the coupling 500 is coupled (or connected) to the enclosure 310, the thickness of the second connecting member 384 can be compressed from the initial thickness (T4') to the compressed thickness (T4) by the pressure applied from the enclosure 310, so that vibrations in the second region (A2) in the first enclosure 311 can be efficiently transmitted to the vehicle interior material 130 via the compressed second connecting member 384. For example, when the acoustic device 30 is separated (or detached) from the vehicle interior material 130 by the separation of the coupling 500, the second connecting member 384 can be restored from the deformed thickness (T4) to the initial thickness (T4') by the elastic restoring force.

[0443] The vehicle interior material 130 connected to (or in contact with) the enclosure 310 or the first enclosure 311 may be deformed to include a bent portion or at least one curved portion by the connection (or linkage) between the joint 500 and the enclosure 310, thereby preventing lifting between the edge portion of the enclosure 310 or the first enclosure 311 and the vehicle interior material 130 by the second connecting member 384 having a relatively thicker thickness. This allows vibrations at the edge portion of the enclosure 310 or the first enclosure 311 caused by vibrations from the vibrator to be transmitted to the vehicle interior material 130 without loss, thereby improving the vibration efficiency transmitted from the enclosure 310 to the vehicle interior material 130, and potentially further improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range.

[0444] The acoustic device 30 described with reference to Figures 37 and 38 may further include one or more holes 331o described with reference to Figure 30, or a protective member 410 described with reference to Figure 31, or one or more holes 331o described with reference to Figure 32, a protective member 410, and at least one hole 410h of the protective member 410, and redundant descriptions thereof are omitted. For example, an acoustic device according to another embodiment of this specification may include at least one of the first enclosure 311, one or more holes 331o, and at least one hole 410h of the protective member 410, and may include one of the shape of the joint 500, the width (W) of the joint 500, and the length (L) of the joint 500, so that the acoustic characteristics and / or sound pressure characteristics of the low-frequency and mid-frequency bands may be further improved and the acoustic reproduction band may be further extended.

[0445] Figure 39 shows a vibration device according to one embodiment of this specification. Figure 39 shows the sound generation module of the acoustic device described with reference to Figures 3 to 38, with an additional signal supply member added. Accordingly, in the following description, redundant explanations of the remaining components excluding the signal supply member can be omitted or simplified.

[0446] Referring to Figure 39, an acoustic generation module 330 or vibration device 333, 335 according to one embodiment of this specification may further include a signal supply member 1320 electrically connected to the vibration generation unit 1311. For example, each of the first and second vibration devices 333, 335 may further include a signal supply member 1320 electrically connected to the vibration generation unit 1311.

[0447] In each of the first and second vibration devices 333 and 335, the signal supply member 1320 may be configured to supply a drive signal from the drive circuit to the vibration generating unit 1311. The signal supply member 1320 may be configured to be electrically connected to the vibration unit 1311a. The signal supply member 1320 may be configured to be electrically connected to the first electrode unit 1311b and the second electrode unit 1311c of the vibration unit 1311a.

[0448] In each of the first and second vibration devices 333 and 335, a portion of the signal supply member 1320 may be housed (or inserted) between the cover member 1313 and the vibration member 331. The end (or end portion or one side) 1320e of the signal supply member 1320 may be positioned or inserted (or housed) in the portion between the one side edge of the cover member 1313 and the vibration member 331. The portion between the one side edge of the cover member 1313 and the vibration member 331 can house or cover the end 1320e of the signal supply member 1320 from above and below. This allows the signal supply member 1320 to be integrated with the vibration generating unit 1311. Thus, the sound generation module 330 or the first and second vibration devices 333 and 335 can be realized in a film shape integrated with the signal supply member 1320. For example, the signal supply member 1320 may consist of the vibration generating unit 1311 and one component, thereby achieving a uni-material effect. For example, the signal supply member 1320 may consist of a signal cable, a flexible cable, a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but the embodiments herein are not limited thereto.

[0449] In each of the first and second vibration devices 333 and 335, the signal supply member 1320 according to one embodiment of this specification may include a plurality of signal lines 1321 and 1322. For example, the signal supply member 1320 may include a first signal line 1321 and a second signal line 1322.

[0450] The first signal line 1321 and the second signal line 1322 may protrude (or be extended) from the body of the signal supply member 1320 so as to be parallel to the second direction (Y). For example, each of the first signal line 1321 and the second signal line 1322 may be individually flexed or bent.

[0451] The first signal line 1321 can be electrically connected to the first electrode portion 1311b of the vibration generating unit 1311. For example, the first signal line 1321 can be electrically connected to at least a portion of the first electrode portion 1311b of the vibration generating unit 1311 at one edge of the cover member 1313, or it can be electrically connected directly. For example, the first signal line 1321 can be directly connected to or in direct contact with the first electrode portion 1311b of the vibration generating unit 1311 between the first electrode portion 1311b of the vibration generating unit 1311 and the home portion of the vibration member 331. This allows the first signal line 1321 to supply the first drive signal supplied from the vibration drive unit to the first electrode portion 1311b of the vibration generating unit 1311.

[0452] The second signal line 1322 can be electrically connected to the second electrode portion 1311c of the vibration generating unit 1311. For example, the second signal line 1322 can be electrically connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311 at one edge of the cover member 1313, or it can be electrically connected directly. For example, the second signal line 1322 can be directly connected to or in direct contact with the second electrode portion 1311c between the cover member 1313 and the second electrode portion 1311c of the vibration generating unit 1311. This allows the second signal line 1322 to supply the second drive signal supplied from the vibration drive unit to the second electrode portion 1311c of the vibration generating unit 1311.

[0453] According to one embodiment of this specification, in each of the first and second vibration devices 333 and 335, the first signal line 1321 and the second signal line 1322 of the signal supply member 1320 are integrated with the vibration generating unit 1311. This eliminates the need for a soldering process for electrical communication between the vibration generating unit 1311 and the signal supply member 1320, thus simplifying the structure and manufacturing process of the vibration devices 333 and 335, and thereby improving harmful processes.

[0454] Figure 40 shows a vibration device according to another embodiment of this specification. Figure 40 further includes a signal supply member in the sound generation module of the acoustic device described with reference to Figures 10 and 11. Accordingly, in the following description, redundant descriptions of the remaining components other than the signal supply member can be omitted or simplified.

[0455] Referring to Figure 40, an acoustic generation module 330 or vibration device 333, 335 according to one embodiment of this specification may further include a signal supply member 1320 electrically connected to each of the plurality of vibration generators 333A, 333B, 335A, 335B. For example, each of the first and second vibration devices 333, 335 may further include a first signal supply member 1320 electrically connected to the first vibration generators 333A, 335A, and a second signal supply member 1330 electrically connected to the second vibration generators 333B, 335B.

[0456] In each of the first and second vibration devices 333 and 335, the first signal supply member 1320 may be configured to supply drive signals from the drive circuit to the vibration generating section 1311 of the first vibration generators 333A and 335A. The first signal supply member 1320 may be configured to be electrically connected to the first electrode section 1311b and the second electrode section 131c of the vibration section 1311a. A portion of the first signal supply member 1320 may be housed (or inserted) between the cover member 1313 and the vibration member 331. Since such a first signal supply member 1320 electrically connected to the first vibration generators 333A and 335A of the first and second vibration devices 333 and 335 is substantially the same as the signal supply member 1320 described with reference to Figure 39, a redundant explanation of it will be omitted.

[0457] In each of the first and second vibration devices 333 and 335, the second signal supply member 1330 may be configured to supply the drive signal supplied from the drive circuit to the vibration generating section 1311 of the second vibration generators 333B and 335B. The second signal supply member 1330 may be configured to be electrically connected to the first electrode section 1311b and the second electrode section 131c of the vibration section 1311a.

[0458] In each of the first and second vibrators 333 and 335, a portion of the second signal supply member 1330 may be housed (or inserted) between the cover member 1313 and the intermediate members 333M and 335M. The end (or end portion or one side) 1330e of the second signal supply member 1330 may be positioned in or inserted (or housed) in the portion between the one side edge of the cover member 1313 and the intermediate members 333M and 335M. The portion between the one side edge of the cover member 1313 and the intermediate members 333M and 335M may house or cover the end 1330e of the second signal supply member 1330 from above and below.

[0459] In each of the first and second vibration devices 333 and 335, the second signal supply member 1330 may include a plurality of signal lines 1331 and 1332. For example, the second signal supply member 1330 may include a first signal line 1331 and a second signal line 1332.

[0460] The first signal line 1331 and the second signal line 1332 may protrude (or be extended) from the body of the second signal supply member 1330 so as to be parallel to the second direction (Y). For example, each of the first signal line 1331 and the second signal line 1332 may be individually flexed or bent.

[0461] The first signal line 1331 can be electrically connected to the first electrode portion 1311b of the vibration generating unit 1311. For example, the first signal line 1331 can be electrically connected to at least a portion of the first electrode portion 1311b of the vibration generating unit 1311 at one edge of the cover member 1313, or it can be electrically connected directly. For example, the first signal line 1331 can be directly connected to or in direct contact with the first electrode portion 1311b of the vibration generating unit 1311 between the first electrode portion 1311b of the vibration generating unit 1311 and the intermediate members 333M, 335M. This allows the first signal line 1331 to supply the first drive signal supplied from the vibration drive unit to the first electrode portion 1311b of the vibration generating unit 1311.

[0462] The second signal line 1332 can be electrically connected to the second electrode portion 1311c of the vibration generating unit 1311. For example, the second signal line 1332 can be electrically connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311 at one edge of the cover member 1313, or it can be electrically connected directly. For example, the second signal line 1332 can be directly connected to or in direct contact with the second electrode portion 1311c between the cover member 1313 and the second electrode portion 1311c of the vibration generating unit 1311. This allows the second signal line 1332 to supply the second drive signal supplied from the vibration drive unit to the second electrode portion 1311c of the vibration generating unit 1311.

[0463] According to one embodiment of this specification, in the first and second vibration devices 333 and 335, the first vibration generators 333A and 335A and the first and second signal lines 1321 and 1322 of the first signal supply member 1320 are integrated with the vibration generating unit 1311, and the second vibration generators 333B and 335B and the first and second signal lines 1331 and 1332 of the second signal supply member 1330 are integrated with the vibration generating unit 1311. As a result, a soldering process for electrical communication between the vibration generating unit 1311 and the signal supply members 1320 and 1330 is unnecessary, thus simplifying the structure and manufacturing process of the vibration devices 333 and 335, and thereby improving harmful processes.

[0464] Figure 41 is a diagram showing a transport device according to one embodiment of this specification. Figure 42 is a diagram showing a transport device according to one embodiment of this specification. Figure 43 is a diagram showing an acoustic generator located on the roof of the transport device in Figures 41 and 42. Figure 44 is a diagram showing acoustic generators located on the roof and seats of the transport device in Figures 41 and 42. A description of Figures 41 to 44 can be given with reference to Figures 1 and 2.

[0465] Referring to Figures 41 to 44, the transport device 10 according to one embodiment of this specification may include vehicle interior material 130 and one or more sound generating devices 30-1, 30-2, 30-3.

[0466] According to one embodiment of this specification, the vehicle interior material 130 may include at least one of the following: dashboard, pillar interior material (or pillar trim), floor interior material (or floor carpet), roof interior material (or headliner), door interior material (or door trim), steering wheel interior material (or steering wheel cover), seat interior material, rear package interior material (or rear seat shelf), overhead console (or interior lighting interior material), rearview mirror, glove box, and sun visor. One or more sound generating devices 30-1, 30-2, 30-3 may vibrate at least one of the following: dashboard, pillar interior material (or pillar trim), floor interior material (or floor carpet), roof interior material (or headliner), door interior material (or door trim), steering wheel interior material (or steering wheel cover), seat interior material, rear package interior material (or rear seat shelf), overhead console (or interior lighting interior material), rearview mirror, glove box, and sun visor.

[0467] Referring together to Figures 1, 2, 41, and 42, one or more sound generating devices 30-1, 30-2, 30-3, or sound device 30 may be configured in the area between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120. One or more sound generating devices 30-1, 30-2, 30-3, or sound device 30 are positioned in the area between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120, and can produce sound by indirectly or directly vibrating one or more of the areas between the vehicle interior material 130 and the main structure 110 or in the area between the vehicle interior material 130 and the exterior material 120.

[0468] According to one embodiment of this specification, protective members in one or more sound generating devices 30-1, 30-2, 30-3 may be positioned closer to at least one of the main structure 110 and the exterior material 120 than to the vehicle interior material 130. For example, protective members in one or more sound generating devices 30-1, 30-2, 30-3 may be spaced away from the main structure 110 or the exterior material 120, respectively. For example, a space between the protective members in one or more sound generating devices 30-1, 30-2, 30-3 and the main structure 110 may be further included. For example, a space between the protective members in one or more sound generating devices 30-1, 30-2, 30-3 and the exterior material 120 may be further included. For example, the space between the protective member in one or more sound generating devices 30-1, 30-2, 30-3 and the exterior material 120 and / or the space between the protective member in one or more sound generating devices 30-1, 30-2, 30-3 and the exterior material 120 may be further included.

[0469] A transport device 10 according to one embodiment of this specification may include a first sound generating device 30-1 configured to output sound in the area between the main structure 110, the exterior material 120, and the area between the main structure 110 and the vehicle interior material 130. For example, the first sound generating device 30-1 can be positioned in at least one of the following locations of the transport device 10: between the main structure 110 and the exterior material 120, between the main structure 110 and the vehicle interior material 130, between the exterior material 120, the vehicle interior material 130, and between the exterior material 120 and the vehicle interior material 130, to output sound.

[0470] According to embodiments of this specification, the transport device 10 may include one or more first sound generators 30-1 configured to emit sound in the area between the main structure 110, the exterior material 120, and the area between the main structure 110 and the vehicle interior material 130. For example, one or more first sound generators 30-1 can be positioned in at least one of the following locations to emit sound: between the main structure 110 and the exterior material 120, between the main structure 110 and the vehicle interior material 130, between the exterior material 120, the vehicle interior material 130, and between the exterior material 120 and the vehicle interior material 130. For example, the vehicle interior material 130 may emit sound due to vibration of one or more first sound generators 30-1. For example, the vehicle interior material 130 may be exposed to the interior space (IS).

[0471] The first sound generating device 30-1 may include one or more sound generating modules 31A to 31G located in at least one of the following: the dashboard 130A, pillar interior material 130B, roof interior material 130C, door interior material 130D, seat interior material 130E, steering wheel interior material 130F, and floor interior material 130G. For example, the first sound generating device 30-1 may include at least one of the first to seventh sound generating modules 31A to 31G, thereby enabling the output of one or more channels of sound.

[0472] Referring to Figures 41 to 44, the first sound generation module 31A according to one embodiment of this specification may be positioned between the dash panel and the dashboard 130A and configured to vibrate the dashboard 130A and output sound resulting from the vibration of the dashboard 130A. For example, the first sound generation module 31A may be configured to directly vibrate the dashboard 130A and output sound resulting from the vibration of the dashboard 130A. For example, the first sound generation module 31A includes the sound generation module 330 or sound device 30 described with reference to Figures 3 to 40, so a redundant description of it will be omitted. For example, the first sound generation module 31A may be a dashboard speaker.

[0473] According to one embodiment of this specification, at least one of the dash panel and dashboard 130A may include a first region corresponding to the driver's seat (DS), a second region corresponding to the passenger seat (PS), and a third region (or intermediate region) between the first and second regions. At least one of the dash panel and dashboard 130A may include a slanted fourth region facing the passenger seat (PS). According to one embodiment of this specification, the first sound generation module 31A may be positioned to vibrate at least one of the first to fourth regions of the dashboard 130A. For example, the first sound generation module 31A may be positioned in each of the first and second regions of the dashboard 130A, or in each of the first to fourth regions. For example, the first sound generation module 31A may be positioned in each of the first and second regions of the dashboard 130A, or in at least one of the first to fourth regions. For example, the first sound generation module 31A may be configured to output sound in the range of 150 Hz to 20 kHz. For example, the first acoustic generation modules 31A configured to vibrate at least one of the first to ...

Claims

1. A sound generation module including a vibrating member and a vibrating device configured on the vibrating member, and Includes an enclosure connected to the vibrating member across an internal space, The enclosure is coupled to the edge portion of the vibrating member and includes an opening connected to the internal space, A portion of the vibrating device is an acoustic device housed within the vibrating member.

2. The vibrating member includes a home portion that houses the part of the vibrating device, or The acoustic device according to claim 1, wherein the vibrating device includes an electrode layer housed in the home portion of the vibrating member.

3. The vibration device includes one or more vibration generators, The one or more vibration generators include a vibration generating section, A portion of the one or more vibration generators is housed in the vibrating member, The vibration generating unit is Vibrating part containing piezoelectric material, The first electrode portion located on the first surface of the vibrating portion, and The vibrating portion includes a second electrode portion located on a second surface different from the first surface, The one or more vibration generators described above are: A cover member that covers the first electrode portion, and The acoustic device according to claim 1, further comprising a signal supply member electrically connected to the first electrode portion and the second electrode portion.

4. The acoustic device according to claim 3, wherein a portion of the vibration generating part is housed in the vibrating member.

5. The acoustic device according to claim 4, wherein either the first electrode portion or the second electrode portion is housed in the vibrating member.

6. The acoustic device according to claim 5, wherein the first electrode portion of the first electrode portion and the second electrode portion is housed in the vibrating member.

7. The signal supply member is Between the vibrating member and the first electrode portion, a first signal line electrically connected to the first electrode portion, and The acoustic device according to claim 6, further comprising a second signal line electrically connected to the second electrode portion between the cover member and the second electrode portion.

8. The aforementioned vibration device is A first vibrating device configured on the first surface of the vibrating member, and The acoustic device according to claim 1, further comprising a second vibrating device configured on a second surface different from the first surface of the vibrating member.

9. The enclosure further includes a connecting member connected to the enclosure, The acoustic device according to claim 1, wherein the connecting member includes a first portion and a second portion having different thicknesses.

10. The thickness of the second portion of the connecting member is greater than the thickness of the first portion of the connecting member, and / or the second portion of the connecting member is located at the edge of the enclosure. The acoustic device according to claim 9, wherein the first portion of the connecting member is located in the remaining portion of the enclosure excluding the edge portion.

11. The acoustic device according to any one of claims 1 to 7, 9, and 10, wherein the vibrating member is configured to cover the internal space of the enclosure.

12. The aforementioned vibration device is A first vibrating device configured on the first surface of the vibrating member, and The acoustic device according to claim 11, further comprising a second vibrating device connected to a second surface different from the first surface of the vibrating member, or a second vibrating device connected to the first vibrating device.

13. The acoustic device according to claim 12, wherein the vibrating member further includes one or more holes located around the vibrating device.

14. The second vibrator further includes a protective member, The acoustic device according to claim 12, wherein the protective member is configured to contact the second vibrating device and the second surface of the vibrating member, or to cover the second vibrating device and the second surface of the vibrating member.

15. Interior materials exposed in the interior space, and The interior material includes one or more sound generating devices that output sound into the interior space, A transport device comprising one or more sound generating devices, including the sound device described in any one of claims 1 to 7, 9, and 10.

16. The transport device according to claim 15, wherein the vibrating member in one or more sound generating devices is configured to cover the internal space of the enclosure.

17. The aforementioned vibration device is A first vibrating device configured on the first surface of the vibrating member, and The transport device according to claim 16, further comprising a second vibrating device connected to a second surface different from the first surface of the vibrating member, or a second vibrating device connected to the first vibrating device.

18. The invention further includes a coupling portion configured to connect the enclosure in one or more sound generating devices to the interior material, The transport device according to claim 16, wherein the coupling portion includes a hollow portion that is connected to the internal space of the enclosure through the opening of the enclosure.

19. The interior material includes one or more materials from among metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, and / or The interior materials include at least one of the following: dashboard, pillar interior materials, roof interior materials, door interior materials, seat interior materials, steering wheel interior materials, floor interior materials, rear package interior materials, overhead console, rearview mirror, glove box, garnish members, and sun visors. The transport device according to claim 15, wherein the one or more sound generating devices generate sound by vibrating at least one of the following: the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the steering wheel interior material, the floor interior material, the rear package interior material, the overhead console, the rearview mirror, the glove box, the garnish member, and the sun visor.

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